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demux_ts: avoid using unitialized data
[mplayer/glamo.git] / libmpdemux / demux_ts.c
blobcd2441314e06baede046aa1451a257fca0c53faf
1 /*
2 * Demultiplexer for MPEG2 Transport Streams.
3 *
4 * Written by Nico <nsabbi@libero.it>
5 * Kind feedback is appreciated; 'sucks' and alike is not.
6 * Originally based on demux_pva.c written by Matteo Giani and FFmpeg (libavformat) sources
7 *
8 * This file is part of MPlayer.
9 *
10 * MPlayer is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * MPlayer is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 */
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28
29 #include "config.h"
30 #include "mp_msg.h"
31 #include "options.h"
32
33 #include "libmpcodecs/dec_audio.h"
34 #include "stream/stream.h"
35 #include "demuxer.h"
36 #include "parse_es.h"
37 #include "stheader.h"
38 #include "ms_hdr.h"
39 #include "mpeg_hdr.h"
40 #include "demux_ts.h"
41
42 #define TS_PH_PACKET_SIZE 192
43 #define TS_FEC_PACKET_SIZE 204
44 #define TS_PACKET_SIZE 188
45 #define NB_PID_MAX 8192
46
47 #define MAX_HEADER_SIZE 6 /* enough for PES header + length */
48 #define MAX_CHECK_SIZE 65535
49 #define NUM_CONSECUTIVE_TS_PACKETS 32
50 #define NUM_CONSECUTIVE_AUDIO_PACKETS 348
51 #define MAX_A52_FRAME_SIZE 3840
52
53 #ifndef SIZE_MAX
54 #define SIZE_MAX ((size_t)-1)
55 #endif
56
57 #define TYPE_AUDIO 1
58 #define TYPE_VIDEO 2
59 #define TYPE_SUB 3
60
61 int ts_prog;
62 int ts_keep_broken=0;
63 off_t ts_probe = 0;
64 int audio_substream_id = -1;
65
66 typedef enum
67 {
68 UNKNOWN = -1,
69 VIDEO_MPEG1 = 0x10000001,
70 VIDEO_MPEG2 = 0x10000002,
71 VIDEO_MPEG4 = 0x10000004,
72 VIDEO_H264 = 0x10000005,
73 VIDEO_AVC = mmioFOURCC('a', 'v', 'c', '1'),
74 VIDEO_DIRAC = mmioFOURCC('d', 'r', 'a', 'c'),
75 VIDEO_VC1 = mmioFOURCC('W', 'V', 'C', '1'),
76 AUDIO_MP2 = 0x50,
77 AUDIO_A52 = 0x2000,
78 AUDIO_DTS = 0x2001,
79 AUDIO_LPCM_BE = 0x10001,
80 AUDIO_AAC = mmioFOURCC('M', 'P', '4', 'A'),
81 AUDIO_AAC_LATM = mmioFOURCC('M', 'P', '4', 'L'),
82 AUDIO_TRUEHD = mmioFOURCC('T', 'R', 'H', 'D'),
83 SPU_DVD = 0x3000000,
84 SPU_DVB = 0x3000001,
85 SPU_TELETEXT = 0x3000002,
86 SPU_PGS = 0x3000003,
87 PES_PRIVATE1 = 0xBD00000,
88 SL_PES_STREAM = 0xD000000,
89 SL_SECTION = 0xD100000,
90 MP4_OD = 0xD200000,
91 } es_stream_type_t;
92
93 typedef struct {
94 uint8_t *buffer;
95 uint16_t buffer_len;
96 } ts_section_t;
97
98 typedef struct {
99 int size;
100 unsigned char *start;
101 uint16_t payload_size;
102 es_stream_type_t type, subtype;
103 double pts, last_pts;
104 int pid;
105 char lang[4];
106 int last_cc; // last cc code (-1 if first packet)
107 int is_synced;
108 ts_section_t section;
109 uint8_t *extradata;
110 int extradata_alloc, extradata_len;
111 struct {
112 uint8_t au_start, au_end, last_au_end;
113 } sl;
114 } ES_stream_t;
115
116 typedef struct {
117 void *sh;
118 int id;
119 int type;
120 } sh_av_t;
121
122 typedef struct MpegTSContext {
123 int packet_size; // raw packet size, including FEC if present e.g. 188 bytes
124 ES_stream_t *pids[NB_PID_MAX];
125 sh_av_t streams[NB_PID_MAX];
126 } MpegTSContext;
127
128
129 typedef struct {
130 demux_stream_t *ds;
131 demux_packet_t *pack;
132 int offset, buffer_size;
133 } av_fifo_t;
134
135 #define MAX_EXTRADATA_SIZE 64*1024
136 typedef struct {
137 int32_t object_type; //aka codec used
138 int32_t stream_type; //video, audio etc.
139 uint8_t buf[MAX_EXTRADATA_SIZE];
140 uint16_t buf_size;
141 uint8_t szm1;
142 } mp4_decoder_config_t;
143
144 typedef struct {
145 //flags
146 uint8_t flags;
147 uint8_t au_start;
148 uint8_t au_end;
149 uint8_t random_accesspoint;
150 uint8_t random_accesspoint_only;
151 uint8_t padding;
152 uint8_t use_ts;
153 uint8_t idle;
154 uint8_t duration;
155
156 uint32_t ts_resolution, ocr_resolution;
157 uint8_t ts_len, ocr_len, au_len, instant_bitrate_len, degr_len, au_seqnum_len, packet_seqnum_len;
158 uint32_t timescale;
159 uint16_t au_duration, cts_duration;
160 uint64_t ocr, dts, cts;
161 } mp4_sl_config_t;
162
163 typedef struct {
164 uint16_t id;
165 uint8_t flags;
166 mp4_decoder_config_t decoder;
167 mp4_sl_config_t sl;
168 } mp4_es_descr_t;
169
170 typedef struct {
171 uint16_t id;
172 uint8_t flags;
173 mp4_es_descr_t *es;
174 uint16_t es_cnt;
175 } mp4_od_t;
176
177 typedef struct {
178 uint8_t skip;
179 uint8_t table_id;
180 uint8_t ssi;
181 uint16_t section_length;
182 uint16_t ts_id;
183 uint8_t version_number;
184 uint8_t curr_next;
185 uint8_t section_number;
186 uint8_t last_section_number;
187 struct pat_progs_t {
188 uint16_t id;
189 uint16_t pmt_pid;
190 } *progs;
191 uint16_t progs_cnt;
192 ts_section_t section;
193 } pat_t;
194
195 typedef struct {
196 uint16_t progid;
197 uint8_t skip;
198 uint8_t table_id;
199 uint8_t ssi;
200 uint16_t section_length;
201 uint8_t version_number;
202 uint8_t curr_next;
203 uint8_t section_number;
204 uint8_t last_section_number;
205 uint16_t PCR_PID;
206 uint16_t prog_descr_length;
207 ts_section_t section;
208 uint16_t es_cnt;
209 struct pmt_es_t {
210 uint16_t pid;
211 uint32_t type; //it's 8 bit long, but cast to the right type as FOURCC
212 uint16_t descr_length;
213 uint8_t format_descriptor[5];
214 uint8_t lang[4];
215 uint16_t mp4_es_id;
216 } *es;
217 mp4_od_t iod, *od;
218 mp4_es_descr_t *mp4es;
219 int od_cnt, mp4es_cnt;
220 } pmt_t;
221
222 typedef struct {
223 uint64_t size;
224 float duration;
225 double first_pts;
226 double last_pts;
227 } TS_stream_info;
228
229 typedef struct {
230 MpegTSContext ts;
231 int last_pid;
232 av_fifo_t fifo[3]; //0 for audio, 1 for video, 2 for subs
233 pat_t pat;
234 pmt_t *pmt;
235 uint16_t pmt_cnt;
236 uint32_t prog;
237 uint32_t vbitrate;
238 int keep_broken;
239 int last_aid;
240 int last_vid;
241 int last_sid;
242 char packet[TS_FEC_PACKET_SIZE];
243 TS_stream_info vstr, astr;
244 } ts_priv_t;
245
246
247 typedef struct {
248 es_stream_type_t type;
249 ts_section_t section;
250 } TS_pids_t;
251
252
253 static int IS_AUDIO(es_stream_type_t type)
254 {
255 switch (type) {
256 case AUDIO_MP2:
257 case AUDIO_A52:
258 case AUDIO_LPCM_BE:
259 case AUDIO_AAC:
260 case AUDIO_AAC_LATM:
261 case AUDIO_DTS:
262 case AUDIO_TRUEHD:
263 return 1;
264 }
265 return 0;
266 }
267
268 static int IS_VIDEO(es_stream_type_t type)
269 {
270 switch (type) {
271 case VIDEO_MPEG1:
272 case VIDEO_MPEG2:
273 case VIDEO_MPEG4:
274 case VIDEO_H264:
275 case VIDEO_AVC:
276 case VIDEO_DIRAC:
277 case VIDEO_VC1:
278 return 1;
279 }
280 return 0;
281 }
282
283 static int IS_SUB(es_stream_type_t type)
284 {
285 switch (type) {
286 case SPU_DVD:
287 case SPU_DVB:
288 case SPU_PGS:
289 case SPU_TELETEXT:
290 return 1;
291 }
292 return 0;
293 }
294
295 static int ts_parse(demuxer_t *demuxer, ES_stream_t *es, unsigned char *packet, int probe);
296
297 static uint8_t get_packet_size(const unsigned char *buf, int size)
298 {
299 int i;
300
301 if (size < (TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS))
302 return 0;
303
304 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
305 {
306 if (buf[i * TS_PACKET_SIZE] != 0x47)
307 {
308 mp_msg(MSGT_DEMUX, MSGL_DBG2, "GET_PACKET_SIZE, pos %d, char: %2x\n", i, buf[i * TS_PACKET_SIZE]);
309 goto try_fec;
310 }
311 }
312 return TS_PACKET_SIZE;
313
314 try_fec:
315 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
316 {
317 if (buf[i * TS_FEC_PACKET_SIZE] != 0x47){
318 mp_msg(MSGT_DEMUX, MSGL_DBG2, "GET_PACKET_SIZE, pos %d, char: %2x\n", i, buf[i * TS_PACKET_SIZE]);
319 goto try_philips;
320 }
321 }
322 return TS_FEC_PACKET_SIZE;
323
324 try_philips:
325 for(i=0; i<NUM_CONSECUTIVE_TS_PACKETS; i++)
326 {
327 if (buf[i * TS_PH_PACKET_SIZE] != 0x47)
328 return 0;
329 }
330 return TS_PH_PACKET_SIZE;
331 }
332
333 static int parse_avc_sps(uint8_t *buf, int len, int *w, int *h);
334 static inline uint8_t *pid_lang_from_pmt(ts_priv_t *priv, int pid);
335
336 static void ts_add_stream(demuxer_t * demuxer, ES_stream_t *es)
337 {
338 int i;
339 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
340
341 if(priv->ts.streams[es->pid].sh)
342 return;
343
344 if((IS_AUDIO(es->type) || IS_AUDIO(es->subtype)) && priv->last_aid+1 < MAX_A_STREAMS)
345 {
346 sh_audio_t *sh = new_sh_audio_aid(demuxer, priv->last_aid, es->pid);
347 if(sh)
348 {
349 const char *lang = pid_lang_from_pmt(priv, es->pid);
350 sh->needs_parsing = 1;
351 sh->format = IS_AUDIO(es->type) ? es->type : es->subtype;
352 sh->ds = demuxer->audio;
353
354 priv->ts.streams[es->pid].id = priv->last_aid;
355 priv->ts.streams[es->pid].sh = sh;
356 priv->ts.streams[es->pid].type = TYPE_AUDIO;
357 mp_msg(MSGT_DEMUX, MSGL_V, "\r\nADDED AUDIO PID %d, type: %x stream n. %d\r\n", es->pid, sh->format, priv->last_aid);
358 if (lang && lang[0])
359 mp_msg(MSGT_IDENTIFY, MSGL_V, "ID_AID_%d_LANG=%s\n", es->pid, lang);
360 priv->last_aid++;
361 }
362
363 if(es->extradata && es->extradata_len)
364 {
365 sh->wf = malloc(sizeof(*sh->wf) + es->extradata_len);
366 sh->wf->cbSize = es->extradata_len;
367 memcpy(sh->wf + 1, es->extradata, es->extradata_len);
368 }
369 }
370
371 if((IS_VIDEO(es->type) || IS_VIDEO(es->subtype)) && priv->last_vid+1 < MAX_V_STREAMS)
372 {
373 sh_video_t *sh = new_sh_video_vid(demuxer, priv->last_vid, es->pid);
374 if(sh)
375 {
376 sh->format = IS_VIDEO(es->type) ? es->type : es->subtype;
377 sh->ds = demuxer->video;
378
379 priv->ts.streams[es->pid].id = priv->last_vid;
380 priv->ts.streams[es->pid].sh = sh;
381 priv->ts.streams[es->pid].type = TYPE_VIDEO;
382 mp_msg(MSGT_DEMUX, MSGL_V, "\r\nADDED VIDEO PID %d, type: %x stream n. %d\r\n", es->pid, sh->format, priv->last_vid);
383 priv->last_vid++;
384
385
386 if(sh->format == VIDEO_AVC && es->extradata && es->extradata_len)
387 {
388 int w = 0, h = 0;
389 sh->bih = calloc(1, sizeof(*sh->bih) + es->extradata_len);
390 sh->bih->biSize= sizeof(*sh->bih) + es->extradata_len;
391 sh->bih->biCompression = sh->format;
392 memcpy(sh->bih + 1, es->extradata, es->extradata_len);
393 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "EXTRADATA(%d BYTES): \n", es->extradata_len);
394 for(i = 0;i < es->extradata_len; i++)
395 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "%02x ", (int) es->extradata[i]);
396 mp_msg(MSGT_DEMUXER,MSGL_DBG2,"\n");
397 if(parse_avc_sps(es->extradata, es->extradata_len, &w, &h))
398 {
399 sh->bih->biWidth = w;
400 sh->bih->biHeight = h;
401 }
402 }
403 }
404 }
405
406 if(IS_SUB(es->type) && priv->last_sid+1 < MAX_S_STREAMS)
407 {
408 sh_sub_t *sh = new_sh_sub_sid_lang(demuxer, priv->last_sid, es->pid, pid_lang_from_pmt(priv, es->pid));
409 if (sh) {
410 switch (es->type) {
411 case SPU_DVD:
412 sh->type = 'v'; break;
413 case SPU_PGS:
414 sh->type = 'p'; break;
415 }
416 priv->ts.streams[es->pid].id = priv->last_sid;
417 priv->ts.streams[es->pid].sh = sh;
418 priv->ts.streams[es->pid].type = TYPE_SUB;
419 priv->last_sid++;
420 }
421 }
422 }
423
424 static int ts_check_file(demuxer_t * demuxer)
425 {
426 const int buf_size = (TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS);
427 unsigned char buf[TS_FEC_PACKET_SIZE * NUM_CONSECUTIVE_TS_PACKETS], done = 0, *ptr;
428 uint32_t _read, i, count = 0, is_ts;
429 int cc[NB_PID_MAX], last_cc[NB_PID_MAX], pid, cc_ok, c, good, bad;
430 uint8_t size = 0;
431 off_t pos = 0;
432 off_t init_pos;
433
434 mp_msg(MSGT_DEMUX, MSGL_V, "Checking for MPEG-TS...\n");
435
436 init_pos = stream_tell(demuxer->stream);
437 is_ts = 0;
438 while(! done)
439 {
440 i = 1;
441 c = 0;
442
443 while(((c=stream_read_char(demuxer->stream)) != 0x47)
444 && (c >= 0)
445 && (i < MAX_CHECK_SIZE)
446 && ! demuxer->stream->eof
447 ) i++;
448
449
450 if(c != 0x47)
451 {
452 mp_msg(MSGT_DEMUX, MSGL_V, "THIS DOESN'T LOOK LIKE AN MPEG-TS FILE!\n");
453 is_ts = 0;
454 done = 1;
455 continue;
456 }
457
458 pos = stream_tell(demuxer->stream) - 1;
459 buf[0] = c;
460 _read = stream_read(demuxer->stream, &buf[1], buf_size-1);
461
462 if(_read < buf_size-1)
463 {
464 mp_msg(MSGT_DEMUX, MSGL_V, "COULDN'T READ ENOUGH DATA, EXITING TS_CHECK\n");
465 stream_reset(demuxer->stream);
466 return 0;
467 }
468
469 size = get_packet_size(buf, buf_size);
470 if(size)
471 {
472 done = 1;
473 is_ts = 1;
474 }
475
476 if(pos - init_pos >= MAX_CHECK_SIZE)
477 {
478 done = 1;
479 is_ts = 0;
480 }
481 }
482
483 mp_msg(MSGT_DEMUX, MSGL_V, "TRIED UP TO POSITION %"PRIu64", FOUND %x, packet_size= %d, SEEMS A TS? %d\n", (uint64_t) pos, c, size, is_ts);
484 stream_seek(demuxer->stream, pos);
485
486 if(! is_ts)
487 return 0;
488
489 //LET'S CHECK continuity counters
490 good = bad = 0;
491 for(count = 0; count < NB_PID_MAX; count++)
492 {
493 cc[count] = last_cc[count] = -1;
494 }
495
496 for(count = 0; count < NUM_CONSECUTIVE_TS_PACKETS; count++)
497 {
498 ptr = &(buf[size * count]);
499 pid = ((ptr[1] & 0x1f) << 8) | ptr[2];
500 mp_msg(MSGT_DEMUX, MSGL_DBG2, "BUF: %02x %02x %02x %02x, PID %d, SIZE: %d \n",
501 ptr[0], ptr[1], ptr[2], ptr[3], pid, size);
502
503 if((pid == 8191) || (pid < 16))
504 continue;
505
506 cc[pid] = (ptr[3] & 0xf);
507 cc_ok = (last_cc[pid] < 0) || ((((last_cc[pid] + 1) & 0x0f) == cc[pid]));
508 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PID %d, COMPARE CC %d AND LAST_CC %d\n", pid, cc[pid], last_cc[pid]);
509 if(! cc_ok)
510 //return 0;
511 bad++;
512 else
513 good++;
514
515 last_cc[pid] = cc[pid];
516 }
517
518 mp_msg(MSGT_DEMUX, MSGL_V, "GOOD CC: %d, BAD CC: %d\n", good, bad);
519
520 if(good >= bad)
521 return size;
522 else
523 return 0;
524 }
525
526
527 static inline int32_t progid_idx_in_pmt(ts_priv_t *priv, uint16_t progid)
528 {
529 int x;
530
531 if(priv->pmt == NULL)
532 return -1;
533
534 for(x = 0; x < priv->pmt_cnt; x++)
535 {
536 if(priv->pmt[x].progid == progid)
537 return x;
538 }
539
540 return -1;
541 }
542
543
544 static inline int32_t progid_for_pid(ts_priv_t *priv, int pid, int32_t req) //finds the first program listing a pid
545 {
546 int i, j;
547 pmt_t *pmt;
548
549
550 if(priv->pmt == NULL)
551 return -1;
552
553
554 for(i=0; i < priv->pmt_cnt; i++)
555 {
556 pmt = &(priv->pmt[i]);
557
558 if(pmt->es == NULL)
559 return -1;
560
561 for(j = 0; j < pmt->es_cnt; j++)
562 {
563 if(pmt->es[j].pid == pid)
564 {
565 if((req == 0) || (req == pmt->progid))
566 return pmt->progid;
567 }
568 }
569
570 }
571 return -1;
572 }
573
574 static inline int32_t prog_pcr_pid(ts_priv_t *priv, int progid)
575 {
576 int i;
577
578 if(priv->pmt == NULL)
579 return -1;
580 for(i=0; i < priv->pmt_cnt; i++)
581 {
582 if(priv->pmt[i].progid == progid)
583 return priv->pmt[i].PCR_PID;
584 }
585 return -1;
586 }
587
588
589 static inline int pid_match_lang(ts_priv_t *priv, uint16_t pid, char *lang)
590 {
591 uint16_t i, j;
592 pmt_t *pmt;
593
594 if(priv->pmt == NULL)
595 return -1;
596
597 for(i=0; i < priv->pmt_cnt; i++)
598 {
599 pmt = &(priv->pmt[i]);
600
601 if(pmt->es == NULL)
602 return -1;
603
604 for(j = 0; j < pmt->es_cnt; j++)
605 {
606 if(pmt->es[j].pid != pid)
607 continue;
608
609 mp_msg(MSGT_DEMUXER, MSGL_V, "CMP LANG %s AND %s, pids: %d %d\n",pmt->es[j].lang, lang, pmt->es[j].pid, pid);
610 if(strncmp(pmt->es[j].lang, lang, 3) == 0)
611 {
612 return 1;
613 }
614 }
615
616 }
617
618 return -1;
619 }
620
621 typedef struct {
622 int32_t atype, vtype, stype; //types
623 int32_t apid, vpid, spid; //stream ids
624 char alang[4]; //languages
625 uint16_t prog;
626 off_t probe;
627 } tsdemux_init_t;
628
629 //second stage: returns the count of A52 syncwords found
630 static int a52_check(char *buf, int len)
631 {
632 int cnt, frame_length = 0, ok, srate;
633
634 cnt = ok = 0;
635 if(len < 8)
636 return 0;
637
638 while(cnt < len - 7)
639 {
640 if(buf[cnt] == 0x0B && buf[cnt+1] == 0x77)
641 {
642 frame_length = mp_a52_framesize(&buf[cnt], &srate);
643 if(frame_length>=7 && frame_length<=3840)
644 {
645 cnt += frame_length;
646 ok++;
647 }
648 else
649 cnt++;
650 }
651 else
652 cnt++;
653 }
654
655 mp_msg(MSGT_DEMUXER, MSGL_V, "A52_CHECK(%d input bytes), found %d frame syncwords of %d bytes length\n", len, ok, frame_length);
656 return ok;
657 }
658
659
660 static off_t ts_detect_streams(demuxer_t *demuxer, tsdemux_init_t *param)
661 {
662 int video_found = 0, audio_found = 0, sub_found = 0, i, num_packets = 0, req_apid, req_vpid, req_spid;
663 int is_audio, is_video, is_sub, has_tables;
664 int32_t p, chosen_pid = 0;
665 off_t pos=0, ret = 0, init_pos, end_pos;
666 ES_stream_t es;
667 unsigned char tmp[TS_FEC_PACKET_SIZE];
668 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
669 struct {
670 char *buf;
671 int pos;
672 } pes_priv1[8192], *pptr;
673 char *tmpbuf;
674
675 priv->last_pid = 8192; //invalid pid
676
677 req_apid = param->apid;
678 req_vpid = param->vpid;
679 req_spid = param->spid;
680
681 has_tables = 0;
682 memset(pes_priv1, 0, sizeof(pes_priv1));
683 init_pos = stream_tell(demuxer->stream);
684 mp_msg(MSGT_DEMUXER, MSGL_V, "PROBING UP TO %"PRIu64", PROG: %d\n", (uint64_t) param->probe, param->prog);
685 end_pos = init_pos + (param->probe ? param->probe : TS_MAX_PROBE_SIZE);
686 while(1)
687 {
688 pos = stream_tell(demuxer->stream);
689 if(pos > end_pos || demuxer->stream->eof)
690 break;
691
692 if(ts_parse(demuxer, &es, tmp, 1))
693 {
694 //Non PES-aligned A52 audio may escape detection if PMT is not present;
695 //in this case we try to find at least 3 A52 syncwords
696 if((es.type == PES_PRIVATE1) && (! audio_found) && req_apid > -2)
697 {
698 pptr = &pes_priv1[es.pid];
699 if(pptr->pos < 64*1024)
700 {
701 tmpbuf = realloc(pptr->buf, pptr->pos + es.size);
702 if(tmpbuf != NULL)
703 {
704 pptr->buf = tmpbuf;
705 memcpy(&(pptr->buf[ pptr->pos ]), es.start, es.size);
706 pptr->pos += es.size;
707 if(a52_check(pptr->buf, pptr->pos) > 2)
708 {
709 param->atype = AUDIO_A52;
710 param->apid = es.pid;
711 es.type = AUDIO_A52;
712 }
713 }
714 }
715 }
716
717 is_audio = IS_AUDIO(es.type) || ((es.type==SL_PES_STREAM) && IS_AUDIO(es.subtype));
718 is_video = IS_VIDEO(es.type) || ((es.type==SL_PES_STREAM) && IS_VIDEO(es.subtype));
719 is_sub = IS_SUB(es.type);
720
721
722 if((! is_audio) && (! is_video) && (! is_sub))
723 continue;
724 if(is_audio && req_apid==-2)
725 continue;
726
727 if(is_video)
728 {
729 chosen_pid = (req_vpid == es.pid);
730 if((! chosen_pid) && (req_vpid > 0))
731 continue;
732 }
733 else if(is_audio)
734 {
735 if(req_apid > 0)
736 {
737 chosen_pid = (req_apid == es.pid);
738 if(! chosen_pid)
739 continue;
740 }
741 else if(param->alang[0] > 0 && es.lang[0] > 0)
742 {
743 if(pid_match_lang(priv, es.pid, param->alang) == -1)
744 continue;
745
746 chosen_pid = 1;
747 param->apid = req_apid = es.pid;
748 }
749 }
750 else if(is_sub)
751 {
752 chosen_pid = (req_spid == es.pid);
753 if((! chosen_pid) && (req_spid > 0))
754 continue;
755 }
756
757 if(req_apid < 0 && (param->alang[0] == 0) && req_vpid < 0 && req_spid < 0)
758 chosen_pid = 1;
759
760 if((ret == 0) && chosen_pid)
761 {
762 ret = stream_tell(demuxer->stream);
763 }
764
765 p = progid_for_pid(priv, es.pid, param->prog);
766 if(p != -1)
767 {
768 has_tables++;
769 if(!param->prog && chosen_pid)
770 param->prog = p;
771 }
772
773 if((param->prog > 0) && (param->prog != p))
774 {
775 if(audio_found)
776 {
777 if(is_video && (req_vpid == es.pid))
778 {
779 param->vtype = IS_VIDEO(es.type) ? es.type : es.subtype;
780 param->vpid = es.pid;
781 video_found = 1;
782 break;
783 }
784 }
785
786 if(video_found)
787 {
788 if(is_audio && (req_apid == es.pid))
789 {
790 param->atype = IS_AUDIO(es.type) ? es.type : es.subtype;
791 param->apid = es.pid;
792 audio_found = 1;
793 break;
794 }
795 }
796
797
798 continue;
799 }
800
801
802 mp_msg(MSGT_DEMUXER, MSGL_DBG2, "TYPE: %x, PID: %d, PROG FOUND: %d\n", es.type, es.pid, param->prog);
803
804
805 if(is_video)
806 {
807 if((req_vpid == -1) || (req_vpid == es.pid))
808 {
809 param->vtype = IS_VIDEO(es.type) ? es.type : es.subtype;
810 param->vpid = es.pid;
811 video_found = 1;
812 }
813 }
814
815
816 if(((req_vpid == -2) || (num_packets >= NUM_CONSECUTIVE_AUDIO_PACKETS)) && audio_found && !param->probe)
817 {
818 //novideo or we have at least 348 audio packets (64 KB) without video (TS with audio only)
819 param->vtype = 0;
820 break;
821 }
822
823 if(is_sub)
824 {
825 if((req_spid == -1) || (req_spid == es.pid))
826 {
827 param->stype = es.type;
828 param->spid = es.pid;
829 sub_found = 1;
830 }
831 }
832
833 if(is_audio)
834 {
835 if((req_apid == -1) || (req_apid == es.pid))
836 {
837 param->atype = IS_AUDIO(es.type) ? es.type : es.subtype;
838 param->apid = es.pid;
839 audio_found = 1;
840 }
841 }
842
843 if(audio_found && (param->apid == es.pid) && (! video_found))
844 num_packets++;
845
846 if((has_tables==0) && (video_found && audio_found) && (pos >= 1000000))
847 break;
848 }
849 }
850
851 for(i=0; i<8192; i++)
852 {
853 if(pes_priv1[i].buf != NULL)
854 {
855 free(pes_priv1[i].buf);
856 pes_priv1[i].buf = NULL;
857 pes_priv1[i].pos = 0;
858 }
859 }
860
861 if(video_found)
862 {
863 if(param->vtype == VIDEO_MPEG1)
864 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG1(pid=%d) ", param->vpid);
865 else if(param->vtype == VIDEO_MPEG2)
866 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG2(pid=%d) ", param->vpid);
867 else if(param->vtype == VIDEO_MPEG4)
868 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO MPEG4(pid=%d) ", param->vpid);
869 else if(param->vtype == VIDEO_H264)
870 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO H264(pid=%d) ", param->vpid);
871 else if(param->vtype == VIDEO_VC1)
872 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO VC1(pid=%d) ", param->vpid);
873 else if(param->vtype == VIDEO_AVC)
874 mp_msg(MSGT_DEMUXER, MSGL_INFO, "VIDEO AVC(NAL-H264, pid=%d) ", param->vpid);
875 }
876 else
877 {
878 param->vtype = UNKNOWN;
879 //WE DIDN'T MATCH ANY VIDEO STREAM
880 mp_msg(MSGT_DEMUXER, MSGL_INFO, "NO VIDEO! ");
881 }
882
883 if(param->atype == AUDIO_MP2)
884 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO MPA(pid=%d)", param->apid);
885 else if(param->atype == AUDIO_A52)
886 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO A52(pid=%d)", param->apid);
887 else if(param->atype == AUDIO_DTS)
888 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO DTS(pid=%d)", param->apid);
889 else if(param->atype == AUDIO_LPCM_BE)
890 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO LPCM(pid=%d)", param->apid);
891 else if(param->atype == AUDIO_AAC)
892 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO AAC(pid=%d)", param->apid);
893 else if(param->atype == AUDIO_AAC_LATM)
894 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO AAC LATM(pid=%d)", param->apid);
895 else if(param->atype == AUDIO_TRUEHD)
896 mp_msg(MSGT_DEMUXER, MSGL_INFO, "AUDIO TRUEHD(pid=%d)", param->apid);
897 else
898 {
899 audio_found = 0;
900 param->atype = UNKNOWN;
901 //WE DIDN'T MATCH ANY AUDIO STREAM, SO WE FORCE THE DEMUXER TO IGNORE AUDIO
902 mp_msg(MSGT_DEMUXER, MSGL_INFO, "NO AUDIO! ");
903 }
904
905 if(IS_SUB(param->stype))
906 mp_msg(MSGT_DEMUXER, MSGL_INFO, " SUB %s(pid=%d) ", (param->stype==SPU_DVD ? "DVD" : param->stype==SPU_DVB ? "DVB" : "Teletext"), param->spid);
907 else
908 {
909 param->stype = UNKNOWN;
910 mp_msg(MSGT_DEMUXER, MSGL_INFO, " NO SUBS (yet)! ");
911 }
912
913 if(video_found || audio_found)
914 {
915 if(!param->prog)
916 {
917 p = progid_for_pid(priv, video_found ? param->vpid : param->apid, 0);
918 if(p != -1)
919 param->prog = p;
920 }
921
922 if(demuxer->stream->eof && (ret == 0))
923 ret = init_pos;
924 mp_msg(MSGT_DEMUXER, MSGL_INFO, " PROGRAM N. %d\n", param->prog);
925 }
926 else
927 mp_msg(MSGT_DEMUXER, MSGL_INFO, "\n");
928
929
930 for(i=0; i<8192; i++)
931 {
932 if(priv->ts.pids[i] != NULL)
933 {
934 priv->ts.pids[i]->payload_size = 0;
935 priv->ts.pids[i]->pts = priv->ts.pids[i]->last_pts = 0;
936 priv->ts.pids[i]->last_cc = -1;
937 priv->ts.pids[i]->is_synced = 0;
938 }
939 }
940
941 return ret;
942 }
943
944 static int parse_avc_sps(uint8_t *buf, int len, int *w, int *h)
945 {
946 int sps, sps_len;
947 unsigned char *ptr;
948 mp_mpeg_header_t picture;
949 if(len < 6)
950 return 0;
951 sps = buf[5] & 0x1f;
952 if(!sps)
953 return 0;
954 sps_len = (buf[6] << 8) | buf[7];
955 if(!sps_len || (sps_len > len - 8))
956 return 0;
957 ptr = &(buf[8]);
958 picture.display_picture_width = picture.display_picture_height = 0;
959 h264_parse_sps(&picture, ptr, len - 8);
960 if(!picture.display_picture_width || !picture.display_picture_height)
961 return 0;
962 *w = picture.display_picture_width;
963 *h = picture.display_picture_height;
964 return 1;
965 }
966
967 static demuxer_t *demux_open_ts(demuxer_t * demuxer)
968 {
969 int i;
970 uint8_t packet_size;
971 sh_video_t *sh_video;
972 sh_audio_t *sh_audio;
973 off_t start_pos;
974 tsdemux_init_t params;
975 ts_priv_t * priv = demuxer->priv;
976
977 mp_msg(MSGT_DEMUX, MSGL_V, "DEMUX OPEN, AUDIO_ID: %d, VIDEO_ID: %d, SUBTITLE_ID: %d,\n",
978 demuxer->audio->id, demuxer->video->id, demuxer->sub->id);
979
980
981 demuxer->type= DEMUXER_TYPE_MPEG_TS;
982
983
984 stream_reset(demuxer->stream);
985
986 packet_size = ts_check_file(demuxer);
987 if(!packet_size)
988 return NULL;
989
990 priv = calloc(1, sizeof(ts_priv_t));
991 if(priv == NULL)
992 {
993 mp_msg(MSGT_DEMUX, MSGL_FATAL, "DEMUX_OPEN_TS, couldn't allocate enough memory for ts->priv, exit\n");
994 return NULL;
995 }
996
997 for(i=0; i < 8192; i++)
998 {
999 priv->ts.pids[i] = NULL;
1000 priv->ts.streams[i].id = -3;
1001 }
1002 priv->pat.progs = NULL;
1003 priv->pat.progs_cnt = 0;
1004 priv->pat.section.buffer = NULL;
1005 priv->pat.section.buffer_len = 0;
1006
1007 priv->pmt = NULL;
1008 priv->pmt_cnt = 0;
1009
1010 priv->keep_broken = ts_keep_broken;
1011 priv->ts.packet_size = packet_size;
1012
1013
1014 demuxer->priv = priv;
1015 if(demuxer->stream->type != STREAMTYPE_FILE)
1016 demuxer->seekable = 1;
1017 else
1018 demuxer->seekable = 1;
1019
1020
1021 params.atype = params.vtype = params.stype = UNKNOWN;
1022 params.apid = demuxer->audio->id;
1023 params.vpid = demuxer->video->id;
1024 params.spid = demuxer->sub->id;
1025 params.prog = ts_prog;
1026 params.probe = ts_probe;
1027
1028 if(demuxer->opts->audio_lang != NULL)
1029 {
1030 strncpy(params.alang, demuxer->opts->audio_lang, 3);
1031 params.alang[3] = 0;
1032 }
1033 else
1034 memset(params.alang, 0, 4);
1035
1036 start_pos = ts_detect_streams(demuxer, &params);
1037
1038 demuxer->sub->id = params.spid;
1039 priv->prog = params.prog;
1040
1041 if(params.vtype != UNKNOWN)
1042 {
1043 ts_add_stream(demuxer, priv->ts.pids[params.vpid]);
1044 sh_video = priv->ts.streams[params.vpid].sh;
1045 demuxer->video->id = priv->ts.streams[params.vpid].id;
1046 sh_video->ds = demuxer->video;
1047 sh_video->format = params.vtype;
1048 demuxer->video->sh = sh_video;
1049 }
1050
1051 if(params.atype != UNKNOWN)
1052 {
1053 ES_stream_t *es = priv->ts.pids[params.apid];
1054
1055 if(!IS_AUDIO(es->type) && !IS_AUDIO(es->subtype) && IS_AUDIO(params.atype)) es->subtype = params.atype;
1056 ts_add_stream(demuxer, priv->ts.pids[params.apid]);
1057 sh_audio = priv->ts.streams[params.apid].sh;
1058 demuxer->audio->id = priv->ts.streams[params.apid].id;
1059 sh_audio->ds = demuxer->audio;
1060 sh_audio->format = params.atype;
1061 demuxer->audio->sh = sh_audio;
1062 }
1063
1064
1065 mp_msg(MSGT_DEMUXER,MSGL_V, "Opened TS demuxer, audio: %x(pid %d), video: %x(pid %d)...POS=%"PRIu64", PROBE=%"PRIu64"\n", params.atype, demuxer->audio->id, params.vtype, demuxer->video->id, (uint64_t) start_pos, ts_probe);
1066
1067
1068 start_pos = start_pos <= priv->ts.packet_size ?
1069 demuxer->stream->start_pos :
1070 start_pos - priv->ts.packet_size;
1071 demuxer->movi_start = start_pos;
1072 demuxer->reference_clock = MP_NOPTS_VALUE;
1073 stream_reset(demuxer->stream);
1074 stream_seek(demuxer->stream, start_pos); //IF IT'S FROM A PIPE IT WILL FAIL, BUT WHO CARES?
1075
1076
1077 priv->last_pid = 8192; //invalid pid
1078
1079 for(i = 0; i < 3; i++)
1080 {
1081 priv->fifo[i].pack = NULL;
1082 priv->fifo[i].offset = 0;
1083 }
1084 priv->fifo[0].ds = demuxer->audio;
1085 priv->fifo[1].ds = demuxer->video;
1086 priv->fifo[2].ds = demuxer->sub;
1087
1088 priv->fifo[0].buffer_size = 1536;
1089 priv->fifo[1].buffer_size = 32767;
1090 priv->fifo[2].buffer_size = 32767;
1091
1092 priv->pat.section.buffer_len = 0;
1093 for(i = 0; i < priv->pmt_cnt; i++)
1094 priv->pmt[i].section.buffer_len = 0;
1095
1096 demuxer->filepos = stream_tell(demuxer->stream);
1097 return demuxer;
1098 }
1099
1100 static void demux_close_ts(demuxer_t * demuxer)
1101 {
1102 uint16_t i;
1103 ts_priv_t *priv = (ts_priv_t*) demuxer->priv;
1104
1105 if(priv)
1106 {
1107 free(priv->pat.section.buffer);
1108 free(priv->pat.progs);
1109
1110 if(priv->pmt)
1111 {
1112 for(i = 0; i < priv->pmt_cnt; i++)
1113 {
1114 free(priv->pmt[i].section.buffer);
1115 free(priv->pmt[i].es);
1116 }
1117 free(priv->pmt);
1118 }
1119 free(priv);
1120 }
1121 demuxer->priv=NULL;
1122 }
1123
1124
1125 #define getbits mp_getbits
1126
1127 static int mp4_parse_sl_packet(pmt_t *pmt, uint8_t *buf, uint16_t packet_len, int pid, ES_stream_t *pes_es)
1128 {
1129 int i, n, m, mp4_es_id = -1;
1130 uint64_t v = 0;
1131 uint32_t pl_size = 0;
1132 int deg_flag = 0;
1133 mp4_es_descr_t *es = NULL;
1134 mp4_sl_config_t *sl = NULL;
1135 uint8_t au_start = 0, au_end = 0, rap_flag = 0, ocr_flag = 0, padding = 0, padding_bits = 0, idle = 0;
1136
1137 pes_es->is_synced = 0;
1138 mp_msg(MSGT_DEMUXER,MSGL_V, "mp4_parse_sl_packet, pid: %d, pmt: %pm, packet_len: %d\n", pid, pmt, packet_len);
1139 if(! pmt || !packet_len)
1140 return 0;
1141
1142 for(i = 0; i < pmt->es_cnt; i++)
1143 {
1144 if(pmt->es[i].pid == pid)
1145 mp4_es_id = pmt->es[i].mp4_es_id;
1146 }
1147 if(mp4_es_id < 0)
1148 return -1;
1149
1150 for(i = 0; i < pmt->mp4es_cnt; i++)
1151 {
1152 if(pmt->mp4es[i].id == mp4_es_id)
1153 es = &(pmt->mp4es[i]);
1154 }
1155 if(! es)
1156 return -1;
1157
1158 pes_es->subtype = es->decoder.object_type;
1159
1160 sl = &(es->sl);
1161 if(!sl)
1162 return -1;
1163
1164 //now es is the complete es_descriptor of out mp4 ES stream
1165 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "ID: %d, FLAGS: 0x%x, subtype: %x\n", es->id, sl->flags, pes_es->subtype);
1166
1167 n = 0;
1168 if(sl->au_start)
1169 pes_es->sl.au_start = au_start = getbits(buf, n++, 1);
1170 else
1171 pes_es->sl.au_start = (pes_es->sl.last_au_end ? 1 : 0);
1172 if(sl->au_end)
1173 pes_es->sl.au_end = au_end = getbits(buf, n++, 1);
1174
1175 if(!sl->au_start && !sl->au_end)
1176 {
1177 pes_es->sl.au_start = pes_es->sl.au_end = au_start = au_end = 1;
1178 }
1179 pes_es->sl.last_au_end = pes_es->sl.au_end;
1180
1181
1182 if(sl->ocr_len > 0)
1183 ocr_flag = getbits(buf, n++, 1);
1184 if(sl->idle)
1185 idle = getbits(buf, n++, 1);
1186 if(sl->padding)
1187 padding = getbits(buf, n++, 1);
1188 if(padding)
1189 {
1190 padding_bits = getbits(buf, n, 3);
1191 n += 3;
1192 }
1193
1194 if(idle || (padding && !padding_bits))
1195 {
1196 pes_es->payload_size = 0;
1197 return -1;
1198 }
1199
1200 //(! idle && (!padding || padding_bits != 0)) is true
1201 n += sl->packet_seqnum_len;
1202 if(sl->degr_len)
1203 deg_flag = getbits(buf, n++, 1);
1204 if(deg_flag)
1205 n += sl->degr_len;
1206
1207 if(ocr_flag)
1208 {
1209 n += sl->ocr_len;
1210 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "OCR: %d bits\n", sl->ocr_len);
1211 }
1212
1213 if(packet_len * 8 <= n)
1214 return -1;
1215
1216 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "\nAU_START: %d, AU_END: %d\n", au_start, au_end);
1217 if(au_start)
1218 {
1219 int dts_flag = 0, cts_flag = 0, ib_flag = 0;
1220
1221 if(sl->random_accesspoint)
1222 rap_flag = getbits(buf, n++, 1);
1223
1224 //check commented because it seems it's rarely used, and we need this flag set in case of au_start
1225 //the decoder will eventually discard the payload if it can't decode it
1226 //if(rap_flag || sl->random_accesspoint_only)
1227 pes_es->is_synced = 1;
1228
1229 n += sl->au_seqnum_len;
1230 if(packet_len * 8 <= n+8)
1231 return -1;
1232 if(sl->use_ts)
1233 {
1234 dts_flag = getbits(buf, n++, 1);
1235 cts_flag = getbits(buf, n++, 1);
1236 }
1237 if(sl->instant_bitrate_len)
1238 ib_flag = getbits(buf, n++, 1);
1239 if(packet_len * 8 <= n+8)
1240 return -1;
1241 if(dts_flag && (sl->ts_len > 0))
1242 {
1243 n += sl->ts_len;
1244 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "DTS: %d bits\n", sl->ts_len);
1245 }
1246 if(packet_len * 8 <= n+8)
1247 return -1;
1248 if(cts_flag && (sl->ts_len > 0))
1249 {
1250 int i = 0, m;
1251
1252 while(i < sl->ts_len)
1253 {
1254 m = FFMIN(8, sl->ts_len - i);
1255 v |= getbits(buf, n, m);
1256 if(sl->ts_len - i > 8)
1257 v <<= 8;
1258 i += m;
1259 n += m;
1260 if(packet_len * 8 <= n+8)
1261 return -1;
1262 }
1263
1264 pes_es->pts = (double) v / (double) sl->ts_resolution;
1265 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "CTS: %d bits, value: %"PRIu64"/%d = %.3f\n", sl->ts_len, v, sl->ts_resolution, pes_es->pts);
1266 }
1267
1268
1269 i = 0;
1270 pl_size = 0;
1271 while(i < sl->au_len)
1272 {
1273 m = FFMIN(8, sl->au_len - i);
1274 pl_size |= getbits(buf, n, m);
1275 if(sl->au_len - i > 8)
1276 pl_size <<= 8;
1277 i += m;
1278 n += m;
1279 if(packet_len * 8 <= n+8)
1280 return -1;
1281 }
1282 mp_msg(MSGT_DEMUXER,MSGL_DBG2, "AU_LEN: %u (%d bits)\n", pl_size, sl->au_len);
1283 if(ib_flag)
1284 n += sl->instant_bitrate_len;
1285 }
1286
1287 m = (n+7)/8;
1288 if(0 < pl_size && pl_size < pes_es->payload_size)
1289 pes_es->payload_size = pl_size;
1290
1291 mp_msg(MSGT_DEMUXER,MSGL_V, "mp4_parse_sl_packet, n=%d, m=%d, size from pes hdr: %u, sl hdr size: %u, RAP FLAGS: %d/%d\n",
1292 n, m, pes_es->payload_size, pl_size, (int) rap_flag, (int) sl->random_accesspoint_only);
1293
1294 return m;
1295 }
1296
1297 //this function parses the extension fields in the PES header and returns the substream_id, or -1 in case of errors
1298 static int parse_pes_extension_fields(unsigned char *p, int pkt_len)
1299 {
1300 int skip;
1301 unsigned char flags;
1302
1303 if(!(p[7] & 0x1)) //no extension_field
1304 return -1;
1305 skip = 9;
1306 if(p[7] & 0x80)
1307 {
1308 skip += 5;
1309 if(p[7] & 0x40)
1310 skip += 5;
1311 }
1312 if(p[7] & 0x20) //escr_flag
1313 skip += 6;
1314 if(p[7] & 0x10) //es_rate_flag
1315 skip += 3;
1316 if(p[7] & 0x08)//dsm_trick_mode is unsupported, skip
1317 {
1318 skip = 0;//don't let's parse the extension fields
1319 }
1320 if(p[7] & 0x04) //additional_copy_info
1321 skip += 1;
1322 if(p[7] & 0x02) //pes_crc_flag
1323 skip += 2;
1324 if(skip >= pkt_len) //too few bytes
1325 return -1;
1326 flags = p[skip];
1327 skip++;
1328 if(flags & 0x80) //pes_private_data_flag
1329 skip += 16;
1330 if(skip >= pkt_len)
1331 return -1;
1332 if(flags & 0x40) //pack_header_field_flag
1333 {
1334 unsigned char l = p[skip];
1335 skip += l;
1336 }
1337 if(flags & 0x20) //program_packet_sequence_counter
1338 skip += 2;
1339 if(flags & 0x10) //p_std
1340 skip += 2;
1341 if(skip >= pkt_len)
1342 return -1;
1343 if(flags & 0x01) //finally the long desired pes_extension2
1344 {
1345 unsigned char l = p[skip]; //ext2 flag+len
1346 skip++;
1347 if((l == 0x81) && (skip < pkt_len))
1348 {
1349 int ssid = p[skip];
1350 mp_msg(MSGT_IDENTIFY, MSGL_V, "SUBSTREAM_ID=%d (0x%02X)\n", ssid, ssid);
1351 return ssid;
1352 }
1353 }
1354
1355 return -1;
1356 }
1357
1358 static int pes_parse2(unsigned char *buf, uint16_t packet_len, ES_stream_t *es, int32_t type_from_pmt, pmt_t *pmt, int pid)
1359 {
1360 unsigned char *p;
1361 uint32_t header_len;
1362 int64_t pts;
1363 uint32_t stream_id;
1364 uint32_t pkt_len, pes_is_aligned;
1365
1366 //Here we are always at the start of a PES packet
1367 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2(%p, %d): \n", buf, (uint32_t) packet_len);
1368
1369 if(packet_len == 0 || packet_len > 184)
1370 {
1371 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2, BUFFER LEN IS TOO SMALL OR TOO BIG: %d EXIT\n", packet_len);
1372 return 0;
1373 }
1374
1375 p = buf;
1376 pkt_len = packet_len;
1377
1378
1379 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: HEADER %02x %02x %02x %02x\n", p[0], p[1], p[2], p[3]);
1380 if (p[0] || p[1] || (p[2] != 1))
1381 {
1382 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: error HEADER %02x %02x %02x (should be 0x000001) \n", p[0], p[1], p[2]);
1383 return 0 ;
1384 }
1385
1386 packet_len -= 6;
1387 if(packet_len==0)
1388 {
1389 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: packet too short: %d, exit\n", packet_len);
1390 return 0;
1391 }
1392
1393 es->payload_size = (p[4] << 8 | p[5]);
1394 pes_is_aligned = (p[6] & 4);
1395
1396 stream_id = p[3];
1397
1398
1399 if (p[7] & 0x80)
1400 { /* pts available */
1401 pts = (int64_t)(p[9] & 0x0E) << 29 ;
1402 pts |= p[10] << 22 ;
1403 pts |= (p[11] & 0xFE) << 14 ;
1404 pts |= p[12] << 7 ;
1405 pts |= (p[13] & 0xFE) >> 1 ;
1406
1407 es->pts = pts / 90000.0;
1408 }
1409 else
1410 es->pts = 0.0;
1411
1412
1413 header_len = p[8];
1414
1415
1416 if (header_len + 9 > pkt_len) //9 are the bytes read up to the header_length field
1417 {
1418 mp_msg(MSGT_DEMUX, MSGL_DBG2, "demux_ts: illegal value for PES_header_data_length (0x%02x)\n", header_len);
1419 return 0;
1420 }
1421
1422 if(stream_id==0xfd)
1423 {
1424 int ssid = parse_pes_extension_fields(p, pkt_len);
1425 if((audio_substream_id!=-1) && (ssid != audio_substream_id))
1426 return 0;
1427 if(ssid == 0x72 && type_from_pmt != AUDIO_DTS && type_from_pmt != SPU_PGS)
1428 es->type = type_from_pmt = AUDIO_TRUEHD;
1429 }
1430
1431 p += header_len + 9;
1432 packet_len -= header_len + 3;
1433
1434 if(es->payload_size)
1435 es->payload_size -= header_len + 3;
1436
1437
1438 es->is_synced = 1; //only for SL streams we have to make sure it's really true, see below
1439 if (stream_id == 0xbd)
1440 {
1441 mp_msg(MSGT_DEMUX, MSGL_DBG3, "pes_parse2: audio buf = %02X %02X %02X %02X %02X %02X %02X %02X, 80: %d\n",
1442 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[0] & 0x80);
1443
1444
1445 /*
1446 * we check the descriptor tag first because some stations
1447 * do not include any of the A52 header info in their audio tracks
1448 * these "raw" streams may begin with a byte that looks like a stream type.
1449 */
1450
1451
1452 if(type_from_pmt == SPU_PGS)
1453 {
1454 es->start = p;
1455 es->size = packet_len;
1456 es->type = SPU_PGS;
1457 es->payload_size -= packet_len;
1458 return 1;
1459 }
1460 if(
1461 (type_from_pmt == AUDIO_A52) || /* A52 - raw */
1462 (packet_len >= 2 && p[0] == 0x0B && p[1] == 0x77) /* A52 - syncword */
1463 )
1464 {
1465 mp_msg(MSGT_DEMUX, MSGL_DBG2, "A52 RAW OR SYNCWORD\n");
1466 es->start = p;
1467 es->size = packet_len;
1468 es->type = AUDIO_A52;
1469 es->payload_size -= packet_len;
1470
1471 return 1;
1472 }
1473 /* SPU SUBS */
1474 else if(type_from_pmt == SPU_DVB ||
1475 (packet_len >= 1 && (p[0] == 0x20) && pes_is_aligned)) // && p[1] == 0x00))
1476 {
1477 es->start = p;
1478 es->size = packet_len;
1479 es->type = SPU_DVB;
1480 es->payload_size -= packet_len;
1481
1482 return 1;
1483 }
1484 else if (pes_is_aligned && packet_len >= 1 && ((p[0] & 0xE0) == 0x20)) //SPU_DVD
1485 {
1486 //DVD SUBS
1487 es->start = p+1;
1488 es->size = packet_len-1;
1489 es->type = SPU_DVD;
1490 es->payload_size -= packet_len;
1491
1492 return 1;
1493 }
1494 else if (pes_is_aligned && packet_len >= 4 && (p[0] & 0xF8) == 0x80)
1495 {
1496 mp_msg(MSGT_DEMUX, MSGL_DBG2, "A52 WITH HEADER\n");
1497 es->start = p+4;
1498 es->size = packet_len - 4;
1499 es->type = AUDIO_A52;
1500 es->payload_size -= packet_len;
1501
1502 return 1;
1503 }
1504 else if (pes_is_aligned && packet_len >= 1 && ((p[0]&0xf0) == 0xa0))
1505 {
1506 int pcm_offset;
1507
1508 for (pcm_offset=0; ++pcm_offset < packet_len-1 ; )
1509 {
1510 if (p[pcm_offset] == 0x01 && p[pcm_offset+1] == 0x80)
1511 { /* START */
1512 pcm_offset += 2;
1513 break;
1514 }
1515 }
1516
1517 es->start = p + pcm_offset;
1518 es->size = packet_len - pcm_offset;
1519 es->type = AUDIO_LPCM_BE;
1520 es->payload_size -= packet_len;
1521
1522 return 1;
1523 }
1524 else
1525 {
1526 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PES_PRIVATE1\n");
1527 es->start = p;
1528 es->size = packet_len;
1529 es->type = (type_from_pmt == UNKNOWN ? PES_PRIVATE1 : type_from_pmt);
1530 es->payload_size -= packet_len;
1531
1532 return 1;
1533 }
1534 }
1535 else if(((stream_id >= 0xe0) && (stream_id <= 0xef)) || (stream_id == 0xfd && type_from_pmt != UNKNOWN))
1536 {
1537 es->start = p;
1538 es->size = packet_len;
1539 if(type_from_pmt != UNKNOWN)
1540 es->type = type_from_pmt;
1541 else
1542 es->type = VIDEO_MPEG2;
1543 if(es->payload_size)
1544 es->payload_size -= packet_len;
1545
1546 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: M2V size %d\n", es->size);
1547 return 1;
1548 }
1549 else if ((stream_id == 0xfa))
1550 {
1551 int l;
1552
1553 es->is_synced = 0;
1554 if(type_from_pmt != UNKNOWN) //MP4 A/V or SL
1555 {
1556 es->start = p;
1557 es->size = packet_len;
1558 es->type = type_from_pmt;
1559
1560 if(type_from_pmt == SL_PES_STREAM)
1561 {
1562 //if(pes_is_aligned)
1563 //{
1564 l = mp4_parse_sl_packet(pmt, p, packet_len, pid, es);
1565 mp_msg(MSGT_DEMUX, MSGL_DBG2, "L=%d, TYPE=%x\n", l, type_from_pmt);
1566 if(l < 0)
1567 {
1568 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: couldn't parse SL header, passing along full PES payload\n");
1569 l = 0;
1570 }
1571 //}
1572
1573 es->start += l;
1574 es->size -= l;
1575 }
1576
1577 if(es->payload_size)
1578 es->payload_size -= packet_len;
1579 return 1;
1580 }
1581 }
1582 else if ((stream_id & 0xe0) == 0xc0)
1583 {
1584 es->start = p;
1585 es->size = packet_len;
1586
1587 if(type_from_pmt != UNKNOWN)
1588 es->type = type_from_pmt;
1589 else
1590 es->type = AUDIO_MP2;
1591
1592 es->payload_size -= packet_len;
1593
1594 return 1;
1595 }
1596 else if (type_from_pmt != -1) //as a last resort here we trust the PMT, if present
1597 {
1598 es->start = p;
1599 es->size = packet_len;
1600 es->type = type_from_pmt;
1601 es->payload_size -= packet_len;
1602
1603 return 1;
1604 }
1605 else
1606 {
1607 mp_msg(MSGT_DEMUX, MSGL_DBG2, "pes_parse2: unknown packet, id: %x\n", stream_id);
1608 }
1609
1610 es->is_synced = 0;
1611 return 0;
1612 }
1613
1614
1615
1616
1617 static int ts_sync(stream_t *stream)
1618 {
1619 mp_msg(MSGT_DEMUX, MSGL_DBG3, "TS_SYNC \n");
1620
1621 while (!stream->eof)
1622 if (stream_read_char(stream) == 0x47)
1623 return 1;
1624
1625 return 0;
1626 }
1627
1628
1629 static void ts_dump_streams(ts_priv_t *priv)
1630 {
1631 int i;
1632
1633 for(i = 0; i < 3; i++)
1634 {
1635 if((priv->fifo[i].pack != NULL) && (priv->fifo[i].offset != 0))
1636 {
1637 resize_demux_packet(priv->fifo[i].pack, priv->fifo[i].offset);
1638 ds_add_packet(priv->fifo[i].ds, priv->fifo[i].pack);
1639 priv->fifo[i].offset = 0;
1640 priv->fifo[i].pack = NULL;
1641 }
1642 }
1643 }
1644
1645
1646 static inline int32_t prog_idx_in_pat(ts_priv_t *priv, uint16_t progid)
1647 {
1648 int x;
1649
1650 if(priv->pat.progs == NULL)
1651 return -1;
1652
1653 for(x = 0; x < priv->pat.progs_cnt; x++)
1654 {
1655 if(priv->pat.progs[x].id == progid)
1656 return x;
1657 }
1658
1659 return -1;
1660 }
1661
1662
1663 static inline int32_t prog_id_in_pat(ts_priv_t *priv, uint16_t pid)
1664 {
1665 int x;
1666
1667 if(priv->pat.progs == NULL)
1668 return -1;
1669
1670 for(x = 0; x < priv->pat.progs_cnt; x++)
1671 {
1672 if(priv->pat.progs[x].pmt_pid == pid)
1673 return priv->pat.progs[x].id;
1674 }
1675
1676 return -1;
1677 }
1678
1679 static int collect_section(ts_section_t *section, int is_start, unsigned char *buff, int size)
1680 {
1681 uint8_t *ptr;
1682 uint16_t tlen;
1683 int skip, tid;
1684
1685 mp_msg(MSGT_DEMUX, MSGL_V, "COLLECT_SECTION, start: %d, size: %d, collected: %d\n", is_start, size, section->buffer_len);
1686 if(! is_start && !section->buffer_len)
1687 return 0;
1688
1689 if(is_start)
1690 {
1691 if(! section->buffer)
1692 {
1693 section->buffer = malloc(4096 + 256);
1694 if(section->buffer == NULL)
1695 return 0;
1696 }
1697 section->buffer_len = 0;
1698 }
1699
1700 if(size + section->buffer_len > 4096+256)
1701 {
1702 mp_msg(MSGT_DEMUX, MSGL_V, "COLLECT_SECTION, excessive len: %d + %d\n", section->buffer_len, size);
1703 return 0;
1704 }
1705
1706 memcpy(&(section->buffer[section->buffer_len]), buff, size);
1707 section->buffer_len += size;
1708
1709 if(section->buffer_len < 3)
1710 return 0;
1711
1712 skip = section->buffer[0];
1713 if(skip + 4 > section->buffer_len)
1714 return 0;
1715
1716 ptr = &(section->buffer[skip + 1]);
1717 tid = ptr[0];
1718 tlen = ((ptr[1] & 0x0f) << 8) | ptr[2];
1719 mp_msg(MSGT_DEMUX, MSGL_V, "SKIP: %d+1, TID: %d, TLEN: %d, COLLECTED: %d\n", skip, tid, tlen, section->buffer_len);
1720 if(section->buffer_len < (skip+1+3+tlen))
1721 {
1722 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DATA IS NOT ENOUGH, NEXT TIME\n");
1723 return 0;
1724 }
1725
1726 return skip+1;
1727 }
1728
1729 static int parse_pat(ts_priv_t * priv, int is_start, unsigned char *buff, int size)
1730 {
1731 int skip;
1732 unsigned char *ptr;
1733 unsigned char *base;
1734 int entries, i;
1735 uint16_t progid;
1736 struct pat_progs_t *tmp;
1737 ts_section_t *section;
1738
1739 section = &(priv->pat.section);
1740 skip = collect_section(section, is_start, buff, size);
1741 if(! skip)
1742 return 0;
1743
1744 ptr = &(section->buffer[skip]);
1745 //PARSING
1746 priv->pat.table_id = ptr[0];
1747 if(priv->pat.table_id != 0)
1748 return 0;
1749 priv->pat.ssi = (ptr[1] >> 7) & 0x1;
1750 priv->pat.curr_next = ptr[5] & 0x01;
1751 priv->pat.ts_id = (ptr[3] << 8 ) | ptr[4];
1752 priv->pat.version_number = (ptr[5] >> 1) & 0x1F;
1753 priv->pat.section_length = ((ptr[1] & 0x03) << 8 ) | ptr[2];
1754 priv->pat.section_number = ptr[6];
1755 priv->pat.last_section_number = ptr[7];
1756
1757 //check_crc32(0xFFFFFFFFL, ptr, priv->pat.buffer_len - 4, &ptr[priv->pat.buffer_len - 4]);
1758 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PAT: section_len: %d, section %d/%d\n", priv->pat.section_length, priv->pat.section_number, priv->pat.last_section_number);
1759
1760 entries = (int) (priv->pat.section_length - 9) / 4; //entries per section
1761
1762 for(i=0; i < entries; i++)
1763 {
1764 int32_t idx;
1765 base = &ptr[8 + i*4];
1766 progid = (base[0] << 8) | base[1];
1767
1768 if((idx = prog_idx_in_pat(priv, progid)) == -1)
1769 {
1770 int sz = sizeof(struct pat_progs_t) * (priv->pat.progs_cnt+1);
1771 tmp = realloc_struct(priv->pat.progs, priv->pat.progs_cnt+1, sizeof(struct pat_progs_t));
1772 if(tmp == NULL)
1773 {
1774 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PAT: COULDN'T REALLOC %d bytes, NEXT\n", sz);
1775 break;
1776 }
1777 priv->pat.progs = tmp;
1778 idx = priv->pat.progs_cnt;
1779 priv->pat.progs_cnt++;
1780 }
1781
1782 priv->pat.progs[idx].id = progid;
1783 priv->pat.progs[idx].pmt_pid = ((base[2] & 0x1F) << 8) | base[3];
1784 mp_msg(MSGT_DEMUX, MSGL_V, "PROG: %d (%d-th of %d), PMT: %d\n", priv->pat.progs[idx].id, i+1, entries, priv->pat.progs[idx].pmt_pid);
1785 mp_msg(MSGT_IDENTIFY, MSGL_V, "PROGRAM_ID=%d (0x%02X), PMT_PID: %d(0x%02X)\n",
1786 progid, progid, priv->pat.progs[idx].pmt_pid, priv->pat.progs[idx].pmt_pid);
1787 }
1788
1789 return 1;
1790 }
1791
1792
1793 static inline int32_t es_pid_in_pmt(pmt_t * pmt, uint16_t pid)
1794 {
1795 uint16_t i;
1796
1797 if(pmt == NULL)
1798 return -1;
1799
1800 if(pmt->es == NULL)
1801 return -1;
1802
1803 for(i = 0; i < pmt->es_cnt; i++)
1804 {
1805 if(pmt->es[i].pid == pid)
1806 return (int32_t) i;
1807 }
1808
1809 return -1;
1810 }
1811
1812
1813 static uint16_t get_mp4_desc_len(uint8_t *buf, int *len)
1814 {
1815 //uint16_t i = 0, size = 0;
1816 int i = 0, j, size = 0;
1817
1818 mp_msg(MSGT_DEMUX, MSGL_DBG2, "PARSE_MP4_DESC_LEN(%d), bytes: ", *len);
1819 j = FFMIN(*len, 4);
1820 while(i < j)
1821 {
1822 mp_msg(MSGT_DEMUX, MSGL_DBG2, " %x ", buf[i]);
1823 size |= (buf[i] & 0x7f);
1824 if(!(buf[i] & 0x80))
1825 break;
1826 size <<= 7;
1827 i++;
1828 }
1829 mp_msg(MSGT_DEMUX, MSGL_DBG2, ", SIZE=%d\n", size);
1830
1831 *len = i+1;
1832 return size;
1833 }
1834
1835
1836 static uint16_t parse_mp4_slconfig_descriptor(uint8_t *buf, int len, void *elem)
1837 {
1838 int i = 0;
1839 mp4_es_descr_t *es;
1840 mp4_sl_config_t *sl;
1841
1842 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_SLCONFIG_DESCRIPTOR(%d)\n", len);
1843 es = (mp4_es_descr_t *) elem;
1844 if(!es)
1845 {
1846 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
1847 return len;
1848 }
1849 sl = &(es->sl);
1850
1851 sl->ts_len = sl->ocr_len = sl->au_len = sl->instant_bitrate_len = sl->degr_len = sl->au_seqnum_len = sl->packet_seqnum_len = 0;
1852 sl->ocr = sl->dts = sl->cts = 0;
1853
1854 if(buf[0] == 0)
1855 {
1856 i++;
1857 sl->flags = buf[i];
1858 i++;
1859 sl->ts_resolution = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1860 i += 4;
1861 sl->ocr_resolution = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1862 i += 4;
1863 sl->ts_len = buf[i];
1864 i++;
1865 sl->ocr_len = buf[i];
1866 i++;
1867 sl->au_len = buf[i];
1868 i++;
1869 sl->instant_bitrate_len = buf[i];
1870 i++;
1871 sl->degr_len = (buf[i] >> 4) & 0x0f;
1872 sl->au_seqnum_len = ((buf[i] & 0x0f) << 1) | ((buf[i+1] >> 7) & 0x01);
1873 i++;
1874 sl->packet_seqnum_len = ((buf[i] >> 2) & 0x1f);
1875 i++;
1876
1877 }
1878 else if(buf[0] == 1)
1879 {
1880 sl->flags = 0;
1881 sl->ts_resolution = 1000;
1882 sl->ts_len = 32;
1883 i++;
1884 }
1885 else if(buf[0] == 2)
1886 {
1887 sl->flags = 4;
1888 i++;
1889 }
1890 else
1891 {
1892 sl->flags = 0;
1893 i++;
1894 }
1895
1896 sl->au_start = (sl->flags >> 7) & 0x1;
1897 sl->au_end = (sl->flags >> 6) & 0x1;
1898 sl->random_accesspoint = (sl->flags >> 5) & 0x1;
1899 sl->random_accesspoint_only = (sl->flags >> 4) & 0x1;
1900 sl->padding = (sl->flags >> 3) & 0x1;
1901 sl->use_ts = (sl->flags >> 2) & 0x1;
1902 sl->idle = (sl->flags >> 1) & 0x1;
1903 sl->duration = sl->flags & 0x1;
1904
1905 if(sl->duration)
1906 {
1907 sl->timescale = (buf[i] << 24) | (buf[i+1] << 16) | (buf[i+2] << 8) | buf[i+3];
1908 i += 4;
1909 sl->au_duration = (buf[i] << 8) | buf[i+1];
1910 i += 2;
1911 sl->cts_duration = (buf[i] << 8) | buf[i+1];
1912 i += 2;
1913 }
1914 else //no support for fixed durations atm
1915 sl->timescale = sl->au_duration = sl->cts_duration = 0;
1916
1917 mp_msg(MSGT_DEMUX, MSGL_V, "MP4SLCONFIG(len=0x%x), predef: %d, flags: %x, use_ts: %d, tslen: %d, timescale: %d, dts: %"PRIu64", cts: %"PRIu64"\n",
1918 len, buf[0], sl->flags, sl->use_ts, sl->ts_len, sl->timescale, (uint64_t) sl->dts, (uint64_t) sl->cts);
1919
1920 return len;
1921 }
1922
1923 static int parse_mp4_descriptors(pmt_t *pmt, uint8_t *buf, int len, void *elem);
1924
1925 static uint16_t parse_mp4_decoder_config_descriptor(pmt_t *pmt, uint8_t *buf, int len, void *elem)
1926 {
1927 int i = 0, j;
1928 mp4_es_descr_t *es;
1929 mp4_decoder_config_t *dec;
1930
1931 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DECODER_CONFIG_DESCRIPTOR(%d)\n", len);
1932 es = (mp4_es_descr_t *) elem;
1933 if(!es)
1934 {
1935 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
1936 return len;
1937 }
1938 dec = (mp4_decoder_config_t*) &(es->decoder);
1939
1940 dec->object_type = buf[i];
1941 dec->stream_type = (buf[i+1]>>2) & 0x3f;
1942
1943 if(dec->object_type == 1 && dec->stream_type == 1)
1944 {
1945 dec->object_type = MP4_OD;
1946 dec->stream_type = MP4_OD;
1947 }
1948 else if(dec->stream_type == 4)
1949 {
1950 if(dec->object_type == 0x6a)
1951 dec->object_type = VIDEO_MPEG1;
1952 if(dec->object_type >= 0x60 && dec->object_type <= 0x65)
1953 dec->object_type = VIDEO_MPEG2;
1954 else if(dec->object_type == 0x20)
1955 dec->object_type = VIDEO_MPEG4;
1956 else if(dec->object_type == 0x21)
1957 dec->object_type = VIDEO_AVC;
1958 /*else if(dec->object_type == 0x22)
1959 fprintf(stderr, "TYPE 0x22\n");*/
1960 else dec->object_type = UNKNOWN;
1961 }
1962 else if(dec->stream_type == 5)
1963 {
1964 if(dec->object_type == 0x40)
1965 dec->object_type = AUDIO_AAC;
1966 else if(dec->object_type == 0x6b)
1967 dec->object_type = AUDIO_MP2;
1968 else if(dec->object_type >= 0x66 && dec->object_type <= 0x69)
1969 dec->object_type = AUDIO_MP2;
1970 else
1971 dec->object_type = UNKNOWN;
1972 }
1973 else
1974 dec->object_type = dec->stream_type = UNKNOWN;
1975
1976 if(dec->object_type != UNKNOWN)
1977 {
1978 //update the type of the current stream
1979 for(j = 0; j < pmt->es_cnt; j++)
1980 {
1981 if(pmt->es[j].mp4_es_id == es->id)
1982 {
1983 pmt->es[j].type = SL_PES_STREAM;
1984 }
1985 }
1986 }
1987
1988 if(len > 13)
1989 parse_mp4_descriptors(pmt, &buf[13], len-13, dec);
1990
1991 mp_msg(MSGT_DEMUX, MSGL_V, "MP4DECODER(0x%x), object_type: 0x%x, stream_type: 0x%x\n", len, dec->object_type, dec->stream_type);
1992
1993 return len;
1994 }
1995
1996 static uint16_t parse_mp4_decoder_specific_descriptor(uint8_t *buf, int len, void *elem)
1997 {
1998 int i;
1999 mp4_decoder_config_t *dec;
2000
2001 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DECODER_SPECIFIC_DESCRIPTOR(%d)\n", len);
2002 dec = (mp4_decoder_config_t *) elem;
2003 if(!dec)
2004 {
2005 mp_msg(MSGT_DEMUX, MSGL_V, "argh! NULL elem passed, skip\n");
2006 return len;
2007 }
2008
2009 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4 SPECIFIC INFO BYTES: \n");
2010 for(i=0; i<len; i++)
2011 mp_msg(MSGT_DEMUX, MSGL_DBG2, "%02x ", buf[i]);
2012 mp_msg(MSGT_DEMUX, MSGL_DBG2, "\n");
2013
2014 if(len > MAX_EXTRADATA_SIZE)
2015 {
2016 mp_msg(MSGT_DEMUX, MSGL_ERR, "DEMUX_TS, EXTRADATA SUSPICIOUSLY BIG: %d, REFUSED\r\n", len);
2017 return len;
2018 }
2019 memcpy(dec->buf, buf, len);
2020 dec->buf_size = len;
2021
2022 return len;
2023 }
2024
2025 static uint16_t parse_mp4_es_descriptor(pmt_t *pmt, uint8_t *buf, int len)
2026 {
2027 int i = 0, j = 0, k, found;
2028 uint8_t flag;
2029 mp4_es_descr_t es, *target_es = NULL, *tmp;
2030
2031 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4ES: len=%d\n", len);
2032 memset(&es, 0, sizeof(mp4_es_descr_t));
2033 while(i < len)
2034 {
2035 es.id = (buf[i] << 8) | buf[i+1];
2036 mp_msg(MSGT_DEMUX, MSGL_V, "MP4ES_ID: %d\n", es.id);
2037 i += 2;
2038 flag = buf[i];
2039 i++;
2040 if(flag & 0x80)
2041 i += 2;
2042 if(flag & 0x40)
2043 i += buf[i]+1;
2044 if(flag & 0x20) //OCR, maybe we need it
2045 i += 2;
2046
2047 j = parse_mp4_descriptors(pmt, &buf[i], len-i, &es);
2048 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4ES, types after parse_mp4_descriptors: 0x%x, 0x%x\n", es.decoder.object_type, es.decoder.stream_type);
2049 if(es.decoder.object_type != UNKNOWN && es.decoder.stream_type != UNKNOWN)
2050 {
2051 found = 0;
2052 //search this ES_ID if we already have it
2053 for(k=0; k < pmt->mp4es_cnt; k++)
2054 {
2055 if(pmt->mp4es[k].id == es.id)
2056 {
2057 target_es = &(pmt->mp4es[k]);
2058 found = 1;
2059 }
2060 }
2061
2062 if(! found)
2063 {
2064 tmp = realloc_struct(pmt->mp4es, pmt->mp4es_cnt+1, sizeof(mp4_es_descr_t));
2065 if(tmp == NULL)
2066 {
2067 fprintf(stderr, "CAN'T REALLOC MP4_ES_DESCR\n");
2068 continue;
2069 }
2070 pmt->mp4es = tmp;
2071 target_es = &(pmt->mp4es[pmt->mp4es_cnt]);
2072 pmt->mp4es_cnt++;
2073 }
2074 memcpy(target_es, &es, sizeof(mp4_es_descr_t));
2075 mp_msg(MSGT_DEMUX, MSGL_V, "MP4ES_CNT: %d, ID=%d\n", pmt->mp4es_cnt, target_es->id);
2076 }
2077
2078 i += j;
2079 }
2080
2081 return len;
2082 }
2083
2084 static void parse_mp4_object_descriptor(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2085 {
2086 int i, j = 0, id;
2087
2088 i=0;
2089 id = (buf[0] << 2) | ((buf[1] & 0xc0) >> 6);
2090 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_OBJECT_DESCRIPTOR: len=%d, OD_ID=%d\n", len, id);
2091 if(buf[1] & 0x20)
2092 {
2093 i += buf[2] + 1; //url
2094 mp_msg(MSGT_DEMUX, MSGL_V, "URL\n");
2095 }
2096 else
2097 {
2098 i = 2;
2099
2100 while(i < len)
2101 {
2102 j = parse_mp4_descriptors(pmt, &(buf[i]), len-i, elem);
2103 mp_msg(MSGT_DEMUX, MSGL_V, "OBJD, NOW i = %d, j=%d, LEN=%d\n", i, j, len);
2104 i += j;
2105 }
2106 }
2107 }
2108
2109
2110 static void parse_mp4_iod(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2111 {
2112 int i, j = 0;
2113 mp4_od_t *iod = &(pmt->iod);
2114
2115 iod->id = (buf[0] << 2) | ((buf[1] & 0xc0) >> 6);
2116 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_IOD: len=%d, IOD_ID=%d\n", len, iod->id);
2117 i = 2;
2118 if(buf[1] & 0x20)
2119 {
2120 i += buf[2] + 1; //url
2121 mp_msg(MSGT_DEMUX, MSGL_V, "URL\n");
2122 }
2123 else
2124 {
2125 i = 7;
2126 while(i < len)
2127 {
2128 j = parse_mp4_descriptors(pmt, &(buf[i]), len-i, elem);
2129 mp_msg(MSGT_DEMUX, MSGL_V, "IOD, NOW i = %d, j=%d, LEN=%d\n", i, j, len);
2130 i += j;
2131 }
2132 }
2133 }
2134
2135 static int parse_mp4_descriptors(pmt_t *pmt, uint8_t *buf, int len, void *elem)
2136 {
2137 int tag, descr_len, i = 0, j = 0;
2138
2139 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_MP4_DESCRIPTORS, len=%d\n", len);
2140 if(! len)
2141 return len;
2142
2143 while(i < len)
2144 {
2145 tag = buf[i];
2146 j = len - i -1;
2147 descr_len = get_mp4_desc_len(&(buf[i+1]), &j);
2148 mp_msg(MSGT_DEMUX, MSGL_V, "TAG=%d (0x%x), DESCR_len=%d, len=%d, j=%d\n", tag, tag, descr_len, len, j);
2149 if(descr_len > len - j+1)
2150 {
2151 mp_msg(MSGT_DEMUX, MSGL_V, "descriptor is too long, exit\n");
2152 return len;
2153 }
2154 i += j+1;
2155
2156 switch(tag)
2157 {
2158 case 0x1:
2159 parse_mp4_object_descriptor(pmt, &(buf[i]), descr_len, elem);
2160 break;
2161 case 0x2:
2162 parse_mp4_iod(pmt, &(buf[i]), descr_len, elem);
2163 break;
2164 case 0x3:
2165 parse_mp4_es_descriptor(pmt, &(buf[i]), descr_len);
2166 break;
2167 case 0x4:
2168 parse_mp4_decoder_config_descriptor(pmt, &buf[i], descr_len, elem);
2169 break;
2170 case 0x05:
2171 parse_mp4_decoder_specific_descriptor(&buf[i], descr_len, elem);
2172 break;
2173 case 0x6:
2174 parse_mp4_slconfig_descriptor(&buf[i], descr_len, elem);
2175 break;
2176 default:
2177 mp_msg(MSGT_DEMUX, MSGL_V, "Unsupported mp4 descriptor 0x%x\n", tag);
2178 }
2179 i += descr_len;
2180 }
2181
2182 return len;
2183 }
2184
2185 static ES_stream_t *new_pid(ts_priv_t *priv, int pid)
2186 {
2187 ES_stream_t *tss;
2188
2189 tss = malloc(sizeof(ES_stream_t));
2190 if(! tss)
2191 return NULL;
2192 memset(tss, 0, sizeof(ES_stream_t));
2193 tss->pid = pid;
2194 tss->last_cc = -1;
2195 tss->type = UNKNOWN;
2196 tss->subtype = UNKNOWN;
2197 tss->is_synced = 0;
2198 tss->extradata = NULL;
2199 tss->extradata_alloc = tss->extradata_len = 0;
2200 priv->ts.pids[pid] = tss;
2201
2202 return tss;
2203 }
2204
2205
2206 static int parse_program_descriptors(pmt_t *pmt, uint8_t *buf, uint16_t len)
2207 {
2208 uint16_t i = 0, k, olen = len;
2209
2210 while(len > 0)
2211 {
2212 mp_msg(MSGT_DEMUX, MSGL_V, "PROG DESCR, TAG=%x, LEN=%d(%x)\n", buf[i], buf[i+1], buf[i+1]);
2213 if(buf[i+1] > len-2)
2214 {
2215 mp_msg(MSGT_DEMUX, MSGL_V, "ERROR, descriptor len is too long, skipping\n");
2216 return olen;
2217 }
2218
2219 if(buf[i] == 0x1d)
2220 {
2221 if(buf[i+3] == 2) //buggy versions of vlc muxer make this non-standard mess (missing iod_scope)
2222 k = 3;
2223 else
2224 k = 4; //this is standard compliant
2225 parse_mp4_descriptors(pmt, &buf[i+k], (int) buf[i+1]-(k-2), NULL);
2226 }
2227
2228 len -= 2 + buf[i+1];
2229 }
2230
2231 return olen;
2232 }
2233
2234 static int parse_descriptors(struct pmt_es_t *es, uint8_t *ptr)
2235 {
2236 int j, descr_len, len;
2237
2238 j = 0;
2239 len = es->descr_length;
2240 while(len > 2)
2241 {
2242 descr_len = ptr[j+1];
2243 mp_msg(MSGT_DEMUX, MSGL_V, "...descr id: 0x%x, len=%d\n", ptr[j], descr_len);
2244 if(descr_len > len)
2245 {
2246 mp_msg(MSGT_DEMUX, MSGL_ERR, "INVALID DESCR LEN for tag %02x: %d vs %d max, EXIT LOOP\n", ptr[j], descr_len, len);
2247 return -1;
2248 }
2249
2250
2251 if(ptr[j] == 0x6a || ptr[j] == 0x7a) //A52 Descriptor
2252 {
2253 if(es->type == 0x6)
2254 {
2255 es->type = AUDIO_A52;
2256 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DVB A52 Descriptor\n");
2257 }
2258 }
2259 else if(ptr[j] == 0x7b) //DVB DTS Descriptor
2260 {
2261 if(es->type == 0x6)
2262 {
2263 es->type = AUDIO_DTS;
2264 mp_msg(MSGT_DEMUX, MSGL_DBG2, "DVB DTS Descriptor\n");
2265 }
2266 }
2267 else if(ptr[j] == 0x56) // Teletext
2268 {
2269 if(descr_len >= 5) {
2270 memcpy(es->lang, ptr+2, 3);
2271 es->lang[3] = 0;
2272 }
2273 es->type = SPU_TELETEXT;
2274 }
2275 else if(ptr[j] == 0x59) //Subtitling Descriptor
2276 {
2277 uint8_t subtype;
2278
2279 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Subtitling Descriptor\n");
2280 if(descr_len < 8)
2281 {
2282 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Descriptor length too short for DVB Subtitle Descriptor: %d, SKIPPING\n", descr_len);
2283 }
2284 else
2285 {
2286 memcpy(es->lang, &ptr[j+2], 3);
2287 es->lang[3] = 0;
2288 subtype = ptr[j+5];
2289 if(
2290 (subtype >= 0x10 && subtype <= 0x13) ||
2291 (subtype >= 0x20 && subtype <= 0x23)
2292 )
2293 {
2294 es->type = SPU_DVB;
2295 //page parameters: compo page 2 bytes, ancillary page 2 bytes
2296 }
2297 else
2298 es->type = UNKNOWN;
2299 }
2300 }
2301 else if(ptr[j] == 0x50) //Component Descriptor
2302 {
2303 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Component Descriptor\n");
2304 memcpy(es->lang, &ptr[j+5], 3);
2305 es->lang[3] = 0;
2306 }
2307 else if(ptr[j] == 0xa) //Language Descriptor
2308 {
2309 memcpy(es->lang, &ptr[j+2], 3);
2310 es->lang[3] = 0;
2311 mp_msg(MSGT_DEMUX, MSGL_V, "Language Descriptor: %s\n", es->lang);
2312 }
2313 else if(ptr[j] == 0x5) //Registration Descriptor (looks like e fourCC :) )
2314 {
2315 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Registration Descriptor\n");
2316 if(descr_len < 4)
2317 {
2318 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Registration Descriptor length too short: %d, SKIPPING\n", descr_len);
2319 }
2320 else
2321 {
2322 char *d;
2323 memcpy(es->format_descriptor, &ptr[j+2], 4);
2324 es->format_descriptor[4] = 0;
2325
2326 d = &ptr[j+2];
2327 if(d[0] == 'A' && d[1] == 'C' && d[2] == '-' && d[3] == '3')
2328 {
2329 es->type = AUDIO_A52;
2330 }
2331 else if(d[0] == 'D' && d[1] == 'T' && d[2] == 'S' && d[3] == '1')
2332 {
2333 es->type = AUDIO_DTS;
2334 }
2335 else if(d[0] == 'D' && d[1] == 'T' && d[2] == 'S' && d[3] == '2')
2336 {
2337 es->type = AUDIO_DTS;
2338 }
2339 else if(d[0] == 'V' && d[1] == 'C' && d[2] == '-' && d[3] == '1')
2340 {
2341 es->type = VIDEO_VC1;
2342 }
2343 else if(d[0] == 'd' && d[1] == 'r' && d[2] == 'a' && d[3] == 'c')
2344 {
2345 es->type = VIDEO_DIRAC;
2346 }
2347 else
2348 es->type = UNKNOWN;
2349 mp_msg(MSGT_DEMUX, MSGL_DBG2, "FORMAT %s\n", es->format_descriptor);
2350 }
2351 }
2352 else if(ptr[j] == 0x1e || ptr[j] == 0x1f)
2353 {
2354 // 0x1f is FMC, but currently it is easiest to handle them the same way
2355 es->mp4_es_id = (ptr[j+2] << 8) | ptr[j+3];
2356 mp_msg(MSGT_DEMUX, MSGL_V, "SL Descriptor: ES_ID: %d(%x), pid: %d\n", es->mp4_es_id, es->mp4_es_id, es->pid);
2357 }
2358 else
2359 mp_msg(MSGT_DEMUX, MSGL_DBG2, "Unknown descriptor 0x%x, SKIPPING\n", ptr[j]);
2360
2361 len -= 2 + descr_len;
2362 j += 2 + descr_len;
2363 }
2364
2365 return 1;
2366 }
2367
2368 static int parse_sl_section(pmt_t *pmt, ts_section_t *section, int is_start, unsigned char *buff, int size)
2369 {
2370 int tid, len, skip;
2371 uint8_t *ptr;
2372 skip = collect_section(section, is_start, buff, size);
2373 if(! skip)
2374 return 0;
2375
2376 ptr = &(section->buffer[skip]);
2377 tid = ptr[0];
2378 len = ((ptr[1] & 0x0f) << 8) | ptr[2];
2379 mp_msg(MSGT_DEMUX, MSGL_V, "TABLEID: %d (av. %d), skip=%d, LEN: %d\n", tid, section->buffer_len, skip, len);
2380 if(len > 4093 || section->buffer_len < len || tid != 5)
2381 {
2382 mp_msg(MSGT_DEMUX, MSGL_V, "SECTION TOO LARGE or wrong section type, EXIT\n");
2383 return 0;
2384 }
2385
2386 if(! (ptr[5] & 1))
2387 return 0;
2388
2389 //8 is the current position, len - 9 is the amount of data available
2390 parse_mp4_descriptors(pmt, &ptr[8], len - 9, NULL);
2391
2392 return 1;
2393 }
2394
2395 static int parse_pmt(ts_priv_t * priv, uint16_t progid, uint16_t pid, int is_start, unsigned char *buff, int size)
2396 {
2397 unsigned char *base, *es_base;
2398 pmt_t *pmt;
2399 int32_t idx, es_count, section_bytes;
2400 uint8_t m=0;
2401 int skip;
2402 pmt_t *tmp;
2403 struct pmt_es_t *tmp_es;
2404 ts_section_t *section;
2405 ES_stream_t *tss;
2406 int i;
2407
2408 idx = progid_idx_in_pmt(priv, progid);
2409
2410 if(idx == -1)
2411 {
2412 int sz = (priv->pmt_cnt + 1) * sizeof(pmt_t);
2413 tmp = realloc_struct(priv->pmt, priv->pmt_cnt + 1, sizeof(pmt_t));
2414 if(tmp == NULL)
2415 {
2416 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PMT: COULDN'T REALLOC %d bytes, NEXT\n", sz);
2417 return 0;
2418 }
2419 priv->pmt = tmp;
2420 idx = priv->pmt_cnt;
2421 memset(&(priv->pmt[idx]), 0, sizeof(pmt_t));
2422 priv->pmt_cnt++;
2423 priv->pmt[idx].progid = progid;
2424 }
2425
2426 pmt = &(priv->pmt[idx]);
2427
2428 section = &(pmt->section);
2429 skip = collect_section(section, is_start, buff, size);
2430 if(! skip)
2431 return 0;
2432
2433 base = &(section->buffer[skip]);
2434
2435 mp_msg(MSGT_DEMUX, MSGL_V, "FILL_PMT(prog=%d), PMT_len: %d, IS_START: %d, TS_PID: %d, SIZE=%d, M=%d, ES_CNT=%d, IDX=%d, PMT_PTR=%p\n",
2436 progid, pmt->section.buffer_len, is_start, pid, size, m, pmt->es_cnt, idx, pmt);
2437
2438 pmt->table_id = base[0];
2439 if(pmt->table_id != 2)
2440 return -1;
2441 pmt->ssi = base[1] & 0x80;
2442 pmt->section_length = (((base[1] & 0xf) << 8 ) | base[2]);
2443 pmt->version_number = (base[5] >> 1) & 0x1f;
2444 pmt->curr_next = (base[5] & 1);
2445 pmt->section_number = base[6];
2446 pmt->last_section_number = base[7];
2447 pmt->PCR_PID = ((base[8] & 0x1f) << 8 ) | base[9];
2448 pmt->prog_descr_length = ((base[10] & 0xf) << 8 ) | base[11];
2449 if(pmt->prog_descr_length > pmt->section_length - 9)
2450 {
2451 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT, INVALID PROG_DESCR LENGTH (%d vs %d)\n", pmt->prog_descr_length, pmt->section_length - 9);
2452 return -1;
2453 }
2454
2455 if(pmt->prog_descr_length)
2456 parse_program_descriptors(pmt, &base[12], pmt->prog_descr_length);
2457
2458 es_base = &base[12 + pmt->prog_descr_length]; //the beginning of th ES loop
2459
2460 section_bytes= pmt->section_length - 13 - pmt->prog_descr_length;
2461 es_count = 0;
2462
2463 while(section_bytes >= 5)
2464 {
2465 int es_pid, es_type;
2466
2467 es_type = es_base[0];
2468 es_pid = ((es_base[1] & 0x1f) << 8) | es_base[2];
2469
2470 idx = es_pid_in_pmt(pmt, es_pid);
2471 if(idx == -1)
2472 {
2473 int sz = sizeof(struct pmt_es_t) * (pmt->es_cnt + 1);
2474 tmp_es = realloc_struct(pmt->es, pmt->es_cnt + 1, sizeof(struct pmt_es_t));
2475 if(tmp_es == NULL)
2476 {
2477 mp_msg(MSGT_DEMUX, MSGL_ERR, "PARSE_PMT, COULDN'T ALLOCATE %d bytes for PMT_ES\n", sz);
2478 continue;
2479 }
2480 pmt->es = tmp_es;
2481 idx = pmt->es_cnt;
2482 memset(&(pmt->es[idx]), 0, sizeof(struct pmt_es_t));
2483 pmt->es_cnt++;
2484 }
2485
2486 pmt->es[idx].descr_length = ((es_base[3] & 0xf) << 8) | es_base[4];
2487
2488
2489 if(pmt->es[idx].descr_length > section_bytes - 5)
2490 {
2491 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT, ES_DESCR_LENGTH TOO LARGE %d > %d, EXIT\n",
2492 pmt->es[idx].descr_length, section_bytes - 5);
2493 return -1;
2494 }
2495
2496
2497 pmt->es[idx].pid = es_pid;
2498 if(es_type != 0x6)
2499 pmt->es[idx].type = UNKNOWN;
2500 else
2501 pmt->es[idx].type = es_type;
2502
2503 parse_descriptors(&pmt->es[idx], &es_base[5]);
2504
2505 switch(es_type)
2506 {
2507 case 1:
2508 pmt->es[idx].type = VIDEO_MPEG1;
2509 break;
2510 case 2:
2511 pmt->es[idx].type = VIDEO_MPEG2;
2512 break;
2513 case 3:
2514 case 4:
2515 pmt->es[idx].type = AUDIO_MP2;
2516 break;
2517 case 6:
2518 if(pmt->es[idx].type == 0x6) //this could have been ovrwritten by parse_descriptors
2519 pmt->es[idx].type = UNKNOWN;
2520 break;
2521 case 0x10:
2522 pmt->es[idx].type = VIDEO_MPEG4;
2523 break;
2524 case 0x0f:
2525 pmt->es[idx].type = AUDIO_AAC;
2526 break;
2527 case 0x11:
2528 pmt->es[idx].type = AUDIO_AAC_LATM;
2529 for (i = 0; i < pmt->mp4es_cnt; i++)
2530 if (pmt->mp4es[i].id == pmt->es[idx].mp4_es_id &&
2531 pmt->mp4es[i].decoder.object_type == AUDIO_AAC)
2532 pmt->es[idx].type = AUDIO_AAC;
2533 break;
2534 case 0x1b:
2535 pmt->es[idx].type = VIDEO_H264;
2536 break;
2537 case 0x12:
2538 pmt->es[idx].type = SL_PES_STREAM;
2539 break;
2540 case 0x13:
2541 pmt->es[idx].type = SL_SECTION;
2542 break;
2543 case 0x81:
2544 pmt->es[idx].type = AUDIO_A52;
2545 break;
2546 case 0x8A:
2547 case 0x82:
2548 case 0x85:
2549 case 0x86:
2550 pmt->es[idx].type = AUDIO_DTS;
2551 break;
2552 case 0x90:
2553 pmt->es[idx].type = SPU_PGS;
2554 break;
2555 case 0xD1:
2556 pmt->es[idx].type = VIDEO_DIRAC;
2557 break;
2558 case 0xEA:
2559 pmt->es[idx].type = VIDEO_VC1;
2560 break;
2561 default:
2562 mp_msg(MSGT_DEMUX, MSGL_DBG2, "UNKNOWN ES TYPE=0x%x\n", es_type);
2563 pmt->es[idx].type = UNKNOWN;
2564 }
2565
2566 tss = priv->ts.pids[es_pid]; //an ES stream
2567 if(tss == NULL)
2568 {
2569 tss = new_pid(priv, es_pid);
2570 if(tss)
2571 tss->type = pmt->es[idx].type;
2572 }
2573
2574 section_bytes -= 5 + pmt->es[idx].descr_length;
2575 mp_msg(MSGT_DEMUX, MSGL_V, "PARSE_PMT(%d INDEX %d), STREAM: %d, FOUND pid=0x%x (%d), type=0x%x, ES_DESCR_LENGTH: %d, bytes left: %d\n",
2576 progid, idx, es_count, pmt->es[idx].pid, pmt->es[idx].pid, pmt->es[idx].type, pmt->es[idx].descr_length, section_bytes);
2577
2578
2579 es_base += 5 + pmt->es[idx].descr_length;
2580
2581 es_count++;
2582 }
2583
2584 mp_msg(MSGT_DEMUX, MSGL_V, "----------------------------\n");
2585 return 1;
2586 }
2587
2588 static pmt_t* pmt_of_pid(ts_priv_t *priv, int pid, mp4_decoder_config_t **mp4_dec)
2589 {
2590 int32_t i, j, k;
2591
2592 if(priv->pmt)
2593 {
2594 for(i = 0; i < priv->pmt_cnt; i++)
2595 {
2596 if(priv->pmt[i].es && priv->pmt[i].es_cnt)
2597 {
2598 for(j = 0; j < priv->pmt[i].es_cnt; j++)
2599 {
2600 if(priv->pmt[i].es[j].pid == pid)
2601 {
2602 //search mp4_es_id
2603 if(priv->pmt[i].es[j].mp4_es_id)
2604 {
2605 for(k = 0; k < priv->pmt[i].mp4es_cnt; k++)
2606 {
2607 if(priv->pmt[i].mp4es[k].id == priv->pmt[i].es[j].mp4_es_id)
2608 {
2609 *mp4_dec = &(priv->pmt[i].mp4es[k].decoder);
2610 break;
2611 }
2612 }
2613 }
2614
2615 return &(priv->pmt[i]);
2616 }
2617 }
2618 }
2619 }
2620 }
2621
2622 return NULL;
2623 }
2624
2625
2626 static inline int32_t pid_type_from_pmt(ts_priv_t *priv, int pid)
2627 {
2628 int32_t pmt_idx, pid_idx, i, j;
2629
2630 pmt_idx = progid_idx_in_pmt(priv, priv->prog);
2631
2632 if(pmt_idx != -1)
2633 {
2634 pid_idx = es_pid_in_pmt(&(priv->pmt[pmt_idx]), pid);
2635 if(pid_idx != -1)
2636 return priv->pmt[pmt_idx].es[pid_idx].type;
2637 }
2638 //else
2639 //{
2640 for(i = 0; i < priv->pmt_cnt; i++)
2641 {
2642 pmt_t *pmt = &(priv->pmt[i]);
2643 for(j = 0; j < pmt->es_cnt; j++)
2644 if(pmt->es[j].pid == pid)
2645 return pmt->es[j].type;
2646 }
2647 //}
2648
2649 return UNKNOWN;
2650 }
2651
2652
2653 static inline uint8_t *pid_lang_from_pmt(ts_priv_t *priv, int pid)
2654 {
2655 int32_t pmt_idx, pid_idx, i, j;
2656
2657 pmt_idx = progid_idx_in_pmt(priv, priv->prog);
2658
2659 if(pmt_idx != -1)
2660 {
2661 pid_idx = es_pid_in_pmt(&(priv->pmt[pmt_idx]), pid);
2662 if(pid_idx != -1)
2663 return priv->pmt[pmt_idx].es[pid_idx].lang;
2664 }
2665 else
2666 {
2667 for(i = 0; i < priv->pmt_cnt; i++)
2668 {
2669 pmt_t *pmt = &(priv->pmt[i]);
2670 for(j = 0; j < pmt->es_cnt; j++)
2671 if(pmt->es[j].pid == pid)
2672 return pmt->es[j].lang;
2673 }
2674 }
2675
2676 return NULL;
2677 }
2678
2679
2680 static int fill_packet(demuxer_t *demuxer, demux_stream_t *ds, demux_packet_t **dp, int *dp_offset, TS_stream_info *si)
2681 {
2682 int ret = 0;
2683
2684 if((*dp != NULL) && (*dp_offset > 0))
2685 {
2686 ret = *dp_offset;
2687 resize_demux_packet(*dp, ret); //shrinked to the right size
2688 ds_add_packet(ds, *dp);
2689 mp_msg(MSGT_DEMUX, MSGL_DBG2, "ADDED %d bytes to %s fifo, PTS=%.3f\n", ret, (ds == demuxer->audio ? "audio" : (ds == demuxer->video ? "video" : "sub")), (*dp)->pts);
2690 if(si)
2691 {
2692 float diff = (*dp)->pts - si->last_pts;
2693 float dur;
2694
2695 if(abs(diff) > 1) //1 second, there's a discontinuity
2696 {
2697 si->duration += si->last_pts - si->first_pts;
2698 si->first_pts = si->last_pts = (*dp)->pts;
2699 }
2700 else
2701 {
2702 si->last_pts = (*dp)->pts;
2703 }
2704 si->size += ret;
2705 dur = si->duration + (si->last_pts - si->first_pts);
2706
2707 if(dur > 0 && ds == demuxer->video)
2708 {
2709 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
2710 if(dur > 1) //otherwise it may be unreliable
2711 priv->vbitrate = (uint32_t) ((float) si->size / dur);
2712 }
2713 }
2714 }
2715
2716 *dp = NULL;
2717 *dp_offset = 0;
2718
2719 return ret;
2720 }
2721
2722 static int fill_extradata(mp4_decoder_config_t * mp4_dec, ES_stream_t *tss)
2723 {
2724 uint8_t *tmp;
2725
2726 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4_dec: %p, pid: %d\n", mp4_dec, tss->pid);
2727
2728 if(mp4_dec->buf_size > tss->extradata_alloc)
2729 {
2730 tmp = realloc(tss->extradata, mp4_dec->buf_size);
2731 if(!tmp)
2732 return 0;
2733 tss->extradata = tmp;
2734 tss->extradata_alloc = mp4_dec->buf_size;
2735 }
2736 memcpy(tss->extradata, mp4_dec->buf, mp4_dec->buf_size);
2737 tss->extradata_len = mp4_dec->buf_size;
2738 mp_msg(MSGT_DEMUX, MSGL_V, "EXTRADATA: %p, alloc=%d, len=%d\n", tss->extradata, tss->extradata_alloc, tss->extradata_len);
2739
2740 return tss->extradata_len;
2741 }
2742
2743 // 0 = EOF or no stream found
2744 // else = [-] number of bytes written to the packet
2745 static int ts_parse(demuxer_t *demuxer , ES_stream_t *es, unsigned char *packet, int probe)
2746 {
2747 ES_stream_t *tss;
2748 int buf_size, is_start, pid, base;
2749 int len, cc, cc_ok, afc, retv = 0, is_video, is_audio, is_sub;
2750 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
2751 stream_t *stream = demuxer->stream;
2752 char *p;
2753 demux_stream_t *ds = NULL;
2754 demux_packet_t **dp = NULL;
2755 int *dp_offset = 0, *buffer_size = 0;
2756 int32_t progid, pid_type, bad, ts_error;
2757 int junk = 0, rap_flag = 0;
2758 pmt_t *pmt;
2759 mp4_decoder_config_t *mp4_dec;
2760 TS_stream_info *si;
2761
2762
2763 memset(es, 0, sizeof(*es));
2764 while(1)
2765 {
2766 bad = ts_error = 0;
2767 ds = NULL;
2768 dp = NULL;
2769 dp_offset = buffer_size = NULL;
2770 rap_flag = 0;
2771 mp4_dec = NULL;
2772 es->is_synced = 0;
2773 es->lang[0] = 0;
2774 si = NULL;
2775
2776 junk = priv->ts.packet_size - TS_PACKET_SIZE;
2777 buf_size = priv->ts.packet_size - junk;
2778
2779 if(stream_eof(stream))
2780 {
2781 if(! probe)
2782 {
2783 ts_dump_streams(priv);
2784 demuxer->filepos = stream_tell(demuxer->stream);
2785 }
2786
2787 return 0;
2788 }
2789
2790
2791 if(! ts_sync(stream))
2792 {
2793 mp_msg(MSGT_DEMUX, MSGL_INFO, "TS_PARSE: COULDN'T SYNC\n");
2794 return 0;
2795 }
2796
2797 len = stream_read(stream, &packet[1], 3);
2798 if (len != 3)
2799 return 0;
2800 buf_size -= 4;
2801
2802 if((packet[1] >> 7) & 0x01) //transport error
2803 ts_error = 1;
2804
2805
2806 is_start = packet[1] & 0x40;
2807 pid = ((packet[1] & 0x1f) << 8) | packet[2];
2808
2809 tss = priv->ts.pids[pid]; //an ES stream
2810 if(tss == NULL)
2811 {
2812 tss = new_pid(priv, pid);
2813 if(tss == NULL)
2814 continue;
2815 }
2816
2817 cc = (packet[3] & 0xf);
2818 cc_ok = (tss->last_cc < 0) || ((((tss->last_cc + 1) & 0x0f) == cc));
2819 tss->last_cc = cc;
2820
2821 bad = ts_error; // || (! cc_ok);
2822 if(bad)
2823 {
2824 if(priv->keep_broken == 0)
2825 {
2826 stream_skip(stream, buf_size-1+junk);
2827 continue;
2828 }
2829
2830 is_start = 0; //queued to the packet data
2831 }
2832
2833 if(is_start)
2834 tss->is_synced = 1;
2835
2836 if((!is_start && !tss->is_synced) || ((pid > 1) && (pid < 16)) || (pid == 8191)) //invalid pid
2837 {
2838 stream_skip(stream, buf_size-1+junk);
2839 continue;
2840 }
2841
2842
2843 afc = (packet[3] >> 4) & 3;
2844 if(! (afc % 2)) //no payload in this TS packet
2845 {
2846 stream_skip(stream, buf_size-1+junk);
2847 continue;
2848 }
2849
2850 if(afc > 1)
2851 {
2852 int c;
2853 c = stream_read_char(stream);
2854 buf_size--;
2855 if(c < 0 || c > 183) //broken from the stream layer or invalid
2856 {
2857 stream_skip(stream, buf_size-1+junk);
2858 continue;
2859 }
2860
2861 //c==0 is allowed!
2862 if(c > 0)
2863 {
2864 uint8_t pcrbuf[188];
2865 int flags = stream_read_char(stream);
2866 int has_pcr;
2867 rap_flag = (flags & 0x40) >> 6;
2868 has_pcr = flags & 0x10;
2869
2870 buf_size--;
2871 c--;
2872 stream_read(stream, pcrbuf, c);
2873
2874 if(has_pcr)
2875 {
2876 int pcr_pid = prog_pcr_pid(priv, priv->prog);
2877 if(pcr_pid == pid)
2878 {
2879 uint64_t pcr, pcr_ext;
2880
2881 pcr = (int64_t)(pcrbuf[0]) << 25;
2882 pcr |= pcrbuf[1] << 17 ;
2883 pcr |= (pcrbuf[2]) << 9;
2884 pcr |= pcrbuf[3] << 1 ;
2885 pcr |= (pcrbuf[4] & 0x80) >> 7;
2886
2887 pcr_ext = (pcrbuf[4] & 0x01) << 8;
2888 pcr_ext |= pcrbuf[5];
2889
2890 pcr = pcr * 300 + pcr_ext;
2891
2892 demuxer->reference_clock = (double)pcr/(double)27000000.0;
2893 }
2894 }
2895
2896 buf_size -= c;
2897 if(buf_size == 0)
2898 continue;
2899 }
2900 }
2901
2902 //find the program that the pid belongs to; if (it's the right one or -1) && pid_type==SL_SECTION
2903 //call parse_sl_section()
2904 pmt = pmt_of_pid(priv, pid, &mp4_dec);
2905 if(mp4_dec)
2906 {
2907 fill_extradata(mp4_dec, tss);
2908 if(IS_VIDEO(mp4_dec->object_type) || IS_AUDIO(mp4_dec->object_type))
2909 {
2910 tss->type = SL_PES_STREAM;
2911 tss->subtype = mp4_dec->object_type;
2912 }
2913 }
2914
2915
2916 //TABLE PARSING
2917
2918 base = priv->ts.packet_size - buf_size;
2919
2920 priv->last_pid = pid;
2921
2922 is_video = IS_VIDEO(tss->type) || (tss->type==SL_PES_STREAM && IS_VIDEO(tss->subtype));
2923 is_audio = IS_AUDIO(tss->type) || (tss->type==SL_PES_STREAM && IS_AUDIO(tss->subtype)) || (tss->type == PES_PRIVATE1);
2924 is_sub = IS_SUB(tss->type);
2925 pid_type = pid_type_from_pmt(priv, pid);
2926
2927 // PES CONTENT STARTS HERE
2928 if(! probe)
2929 {
2930 if((is_video || is_audio || is_sub) && is_start)
2931 ts_add_stream(demuxer, tss);
2932
2933 if(is_video && (demuxer->video->id == priv->ts.streams[pid].id))
2934 {
2935 ds = demuxer->video;
2936
2937 dp = &priv->fifo[1].pack;
2938 dp_offset = &priv->fifo[1].offset;
2939 buffer_size = &priv->fifo[1].buffer_size;
2940 si = &priv->vstr;
2941 }
2942 else if(is_audio && (demuxer->audio->id == priv->ts.streams[pid].id))
2943 {
2944 ds = demuxer->audio;
2945
2946 dp = &priv->fifo[0].pack;
2947 dp_offset = &priv->fifo[0].offset;
2948 buffer_size = &priv->fifo[0].buffer_size;
2949 si = &priv->astr;
2950 }
2951 else if(is_sub)
2952 {
2953 sh_sub_t *sh_sub = demuxer->sub->sh;
2954
2955 if(sh_sub && sh_sub->sid == tss->pid)
2956 {
2957 ds = demuxer->sub;
2958
2959 dp = &priv->fifo[2].pack;
2960 dp_offset = &priv->fifo[2].offset;
2961 buffer_size = &priv->fifo[2].buffer_size;
2962 }
2963 else
2964 {
2965 stream_skip(stream, buf_size+junk);
2966 continue;
2967 }
2968 }
2969
2970 //IS IT TIME TO QUEUE DATA to the dp_packet?
2971 if(is_start && (dp != NULL))
2972 {
2973 // subtitle packets _have_ to be submitted before video, otherwise
2974 // they might get stuck "forever" and subtitles will be completely
2975 // out of sync.
2976 if (is_video)
2977 fill_packet(demuxer, demuxer->sub, &priv->fifo[2].pack, &priv->fifo[2].offset, NULL);
2978 retv = fill_packet(demuxer, ds, dp, dp_offset, si);
2979 }
2980
2981
2982 if(dp && *dp == NULL)
2983 {
2984 if(*buffer_size > MAX_PACK_BYTES)
2985 *buffer_size = MAX_PACK_BYTES;
2986 *dp = new_demux_packet(*buffer_size); //es->size
2987 *dp_offset = 0;
2988 if(! *dp)
2989 {
2990 fprintf(stderr, "fill_buffer, NEW_ADD_PACKET(%d)FAILED\n", *buffer_size);
2991 continue;
2992 }
2993 mp_msg(MSGT_DEMUX, MSGL_DBG2, "CREATED DP(%d)\n", *buffer_size);
2994 }
2995 }
2996
2997
2998 if(probe || !dp) //dp is NULL for tables and sections
2999 {
3000 p = &packet[base];
3001 }
3002 else //feeding
3003 {
3004 if(*dp_offset + buf_size > *buffer_size)
3005 {
3006 *buffer_size = *dp_offset + buf_size + TS_FEC_PACKET_SIZE;
3007 resize_demux_packet(*dp, *buffer_size);
3008 }
3009 p = &((*dp)->buffer[*dp_offset]);
3010 }
3011
3012 len = stream_read(stream, p, buf_size);
3013 if(len < buf_size)
3014 {
3015 mp_msg(MSGT_DEMUX, MSGL_DBG2, "\r\nts_parse() couldn't read enough data: %d < %d\r\n", len, buf_size);
3016 continue;
3017 }
3018 stream_skip(stream, junk);
3019
3020 if(pid == 0)
3021 {
3022 parse_pat(priv, is_start, p, buf_size);
3023 continue;
3024 }
3025 else if((tss->type == SL_SECTION) && pmt)
3026 {
3027 int k, mp4_es_id = -1;
3028 ts_section_t *section;
3029 for(k = 0; k < pmt->mp4es_cnt; k++)
3030 {
3031 if(pmt->mp4es[k].decoder.object_type == MP4_OD && pmt->mp4es[k].decoder.stream_type == MP4_OD)
3032 mp4_es_id = pmt->mp4es[k].id;
3033 }
3034 mp_msg(MSGT_DEMUX, MSGL_DBG2, "MP4ESID: %d\n", mp4_es_id);
3035 for(k = 0; k < pmt->es_cnt; k++)
3036 {
3037 if(pmt->es[k].mp4_es_id == mp4_es_id)
3038 {
3039 section = &(tss->section);
3040 parse_sl_section(pmt, section, is_start, &packet[base], buf_size);
3041 }
3042 }
3043 continue;
3044 }
3045 else
3046 {
3047 progid = prog_id_in_pat(priv, pid);
3048 if(progid != -1)
3049 {
3050 if(pid != demuxer->video->id && pid != demuxer->audio->id && pid != demuxer->sub->id)
3051 {
3052 parse_pmt(priv, progid, pid, is_start, &packet[base], buf_size);
3053 continue;
3054 }
3055 else
3056 mp_msg(MSGT_DEMUX, MSGL_ERR, "Argh! Data pid %d used in the PMT, Skipping PMT parsing!\n", pid);
3057 }
3058 }
3059
3060 if(!probe && !dp)
3061 continue;
3062
3063 if(is_start)
3064 {
3065 uint8_t *lang = NULL;
3066
3067 mp_msg(MSGT_DEMUX, MSGL_DBG2, "IS_START\n");
3068
3069 len = pes_parse2(p, buf_size, es, pid_type, pmt, pid);
3070 if(! len)
3071 {
3072 tss->is_synced = 0;
3073 continue;
3074 }
3075 es->pid = tss->pid;
3076 tss->is_synced |= es->is_synced || rap_flag;
3077 tss->payload_size = es->payload_size;
3078
3079 if((is_sub || is_audio) && (lang = pid_lang_from_pmt(priv, es->pid)))
3080 {
3081 memcpy(es->lang, lang, 3);
3082 es->lang[3] = 0;
3083 }
3084 else
3085 es->lang[0] = 0;
3086
3087 if(probe)
3088 {
3089 if(es->type == UNKNOWN)
3090 return 0;
3091
3092 tss->type = es->type;
3093 tss->subtype = es->subtype;
3094
3095 return 1;
3096 }
3097 else
3098 {
3099 if(es->pts == 0.0)
3100 es->pts = tss->pts = tss->last_pts;
3101 else
3102 tss->pts = tss->last_pts = es->pts;
3103
3104 mp_msg(MSGT_DEMUX, MSGL_DBG2, "ts_parse, NEW pid=%d, PSIZE: %u, type=%X, start=%p, len=%d\n",
3105 es->pid, es->payload_size, es->type, es->start, es->size);
3106
3107 demuxer->filepos = stream_tell(demuxer->stream) - es->size;
3108
3109 if(es->size < 0 || es->size > buf_size) {
3110 mp_msg(MSGT_DEMUX, MSGL_ERR, "Broken ES packet size\n");
3111 es->size = 0;
3112 }
3113 memmove(p, es->start, es->size);
3114 *dp_offset += es->size;
3115 (*dp)->flags = 0;
3116 (*dp)->pos = stream_tell(demuxer->stream);
3117 (*dp)->pts = es->pts;
3118
3119 if(retv > 0)
3120 return retv;
3121 else
3122 continue;
3123 }
3124 }
3125 else
3126 {
3127 uint16_t sz;
3128
3129 es->pid = tss->pid;
3130 es->type = tss->type;
3131 es->subtype = tss->subtype;
3132 es->pts = tss->pts = tss->last_pts;
3133 es->start = &packet[base];
3134
3135
3136 if(tss->payload_size > 0)
3137 {
3138 sz = FFMIN(tss->payload_size, buf_size);
3139 tss->payload_size -= sz;
3140 es->size = sz;
3141 }
3142 else
3143 {
3144 if(is_video)
3145 {
3146 sz = es->size = buf_size;
3147 }
3148 else
3149 {
3150 continue;
3151 }
3152 }
3153
3154
3155 if(! probe)
3156 {
3157 *dp_offset += sz;
3158
3159 if(*dp_offset >= MAX_PACK_BYTES)
3160 {
3161 (*dp)->pts = tss->last_pts;
3162 retv = fill_packet(demuxer, ds, dp, dp_offset, si);
3163 return 1;
3164 }
3165
3166 continue;
3167 }
3168 else
3169 {
3170 memcpy(es->start, p, sz);
3171
3172 if(es->size)
3173 return es->size;
3174 else
3175 continue;
3176 }
3177 }
3178 }
3179
3180 return 0;
3181 }
3182
3183
3184 static void reset_fifos(demuxer_t *demuxer, int a, int v, int s)
3185 {
3186 ts_priv_t* priv = demuxer->priv;
3187 if(a)
3188 {
3189 if(priv->fifo[0].pack != NULL)
3190 {
3191 free_demux_packet(priv->fifo[0].pack);
3192 priv->fifo[0].pack = NULL;
3193 }
3194 priv->fifo[0].offset = 0;
3195 }
3196
3197 if(v)
3198 {
3199 if(priv->fifo[1].pack != NULL)
3200 {
3201 free_demux_packet(priv->fifo[1].pack);
3202 priv->fifo[1].pack = NULL;
3203 }
3204 priv->fifo[1].offset = 0;
3205 }
3206
3207 if(s)
3208 {
3209 if(priv->fifo[2].pack != NULL)
3210 {
3211 free_demux_packet(priv->fifo[2].pack);
3212 priv->fifo[2].pack = NULL;
3213 }
3214 priv->fifo[2].offset = 0;
3215 }
3216 demuxer->reference_clock = MP_NOPTS_VALUE;
3217 }
3218
3219
3220 static void demux_seek_ts(demuxer_t *demuxer, float rel_seek_secs, float audio_delay, int flags)
3221 {
3222 demux_stream_t *d_audio=demuxer->audio;
3223 demux_stream_t *d_video=demuxer->video;
3224 sh_audio_t *sh_audio=d_audio->sh;
3225 sh_video_t *sh_video=d_video->sh;
3226 ts_priv_t * priv = (ts_priv_t*) demuxer->priv;
3227 int i, video_stats;
3228 off_t newpos;
3229
3230 //================= seek in MPEG-TS ==========================
3231
3232 ts_dump_streams(demuxer->priv);
3233 reset_fifos(demuxer, sh_audio != NULL, sh_video != NULL, demuxer->sub->id > 0);
3234
3235 demux_flush(demuxer);
3236
3237
3238
3239 video_stats = (sh_video != NULL);
3240 if(video_stats)
3241 {
3242 mp_msg(MSGT_DEMUX, MSGL_V, "IBPS: %d, vb: %d\r\n", sh_video->i_bps, priv->vbitrate);
3243 if(priv->vbitrate)
3244 video_stats = priv->vbitrate;
3245 else
3246 video_stats = sh_video->i_bps;
3247 }
3248
3249 newpos = (flags & SEEK_ABSOLUTE) ? demuxer->movi_start : demuxer->filepos;
3250 if(flags & SEEK_FACTOR) // float seek 0..1
3251 newpos+=(demuxer->movi_end-demuxer->movi_start)*rel_seek_secs;
3252 else
3253 {
3254 // time seek (secs)
3255 if(! video_stats) // unspecified or VBR
3256 newpos += 2324*75*rel_seek_secs; // 174.3 kbyte/sec
3257 else
3258 newpos += video_stats*rel_seek_secs;
3259 }
3260
3261
3262 if(newpos < demuxer->movi_start)
3263 newpos = demuxer->movi_start; //begininng of stream
3264
3265 stream_seek(demuxer->stream, newpos);
3266 for(i = 0; i < 8192; i++)
3267 if(priv->ts.pids[i] != NULL)
3268 priv->ts.pids[i]->is_synced = 0;
3269
3270 videobuf_code_len = 0;
3271
3272 if(sh_video != NULL)
3273 ds_fill_buffer(d_video);
3274
3275 if(sh_audio != NULL)
3276 {
3277 ds_fill_buffer(d_audio);
3278 }
3279
3280 while(sh_video != NULL)
3281 {
3282 if(sh_audio && !d_audio->eof && d_video->pts && d_audio->pts)
3283 {
3284 double a_pts=d_audio->pts;
3285 a_pts+=(ds_tell_pts(d_audio)-sh_audio->a_in_buffer_len)/(double)sh_audio->i_bps;
3286 if(d_video->pts > a_pts)
3287 {
3288 skip_audio_frame(sh_audio); // sync audio
3289 continue;
3290 }
3291 }
3292
3293
3294 i = sync_video_packet(d_video);
3295 if((sh_video->format == VIDEO_MPEG1) || (sh_video->format == VIDEO_MPEG2))
3296 {
3297 if(i==0x1B3 || i==0x1B8) break; // found it!
3298 }
3299 else if((sh_video->format == VIDEO_MPEG4) && (i==0x1B6))
3300 break;
3301 else if(sh_video->format == VIDEO_VC1 && (i==0x10E || i==0x10F))
3302 break;
3303 else //H264
3304 {
3305 if((i & ~0x60) == 0x105 || (i & ~0x60) == 0x107) break;
3306 }
3307
3308 if(!i || !skip_video_packet(d_video)) break; // EOF?
3309 }
3310 }
3311
3312
3313 static int demux_ts_fill_buffer(demuxer_t * demuxer, demux_stream_t *ds)
3314 {
3315 ES_stream_t es;
3316 ts_priv_t *priv = (ts_priv_t *)demuxer->priv;
3317
3318 return -ts_parse(demuxer, &es, priv->packet, 0);
3319 }
3320
3321
3322 static int ts_check_file_dmx(demuxer_t *demuxer)
3323 {
3324 return ts_check_file(demuxer) ? DEMUXER_TYPE_MPEG_TS : 0;
3325 }
3326
3327 static int is_usable_program(ts_priv_t *priv, pmt_t *pmt)
3328 {
3329 int j;
3330
3331 for(j = 0; j < pmt->es_cnt; j++)
3332 {
3333 if(priv->ts.pids[pmt->es[j].pid] == NULL || priv->ts.streams[pmt->es[j].pid].sh == NULL)
3334 continue;
3335 if(
3336 priv->ts.streams[pmt->es[j].pid].type == TYPE_VIDEO ||
3337 priv->ts.streams[pmt->es[j].pid].type == TYPE_AUDIO
3338 )
3339 return 1;
3340 }
3341
3342 return 0;
3343 }
3344
3345 static int demux_ts_control(demuxer_t *demuxer, int cmd, void *arg)
3346 {
3347 ts_priv_t* priv = (ts_priv_t *)demuxer->priv;
3348
3349 switch(cmd)
3350 {
3351 case DEMUXER_CTRL_SWITCH_AUDIO:
3352 case DEMUXER_CTRL_SWITCH_VIDEO:
3353 {
3354 void *sh = NULL;
3355 int i, n;
3356 int reftype, areset = 0, vreset = 0;
3357 demux_stream_t *ds;
3358
3359 if(cmd == DEMUXER_CTRL_SWITCH_VIDEO)
3360 {
3361 reftype = TYPE_VIDEO;
3362 ds = demuxer->video;
3363 vreset = 1;
3364 }
3365 else
3366 {
3367 reftype = TYPE_AUDIO;
3368 ds = demuxer->audio;
3369 areset = 1;
3370 }
3371 n = *((int*)arg);
3372 if(n == -2)
3373 {
3374 reset_fifos(demuxer, areset, vreset, 0);
3375 ds->id = -2;
3376 ds->sh = NULL;
3377 ds_free_packs(ds);
3378 *((int*)arg) = ds->id;
3379 return DEMUXER_CTRL_OK;
3380 }
3381
3382 if(n < 0)
3383 {
3384 for(i = 0; i < 8192; i++)
3385 {
3386 if(priv->ts.streams[i].id == ds->id && priv->ts.streams[i].type == reftype)
3387 break;
3388 }
3389
3390 while(!sh)
3391 {
3392 i = (i+1) % 8192;
3393 if(priv->ts.streams[i].type == reftype)
3394 {
3395 if(priv->ts.streams[i].id == ds->id) //we made a complete loop
3396 break;
3397 sh = priv->ts.streams[i].sh;
3398 }
3399 }
3400 }
3401 else //audio track <n>
3402 {
3403 if (n >= 8192 || priv->ts.streams[n].type != reftype) return DEMUXER_CTRL_NOTIMPL;
3404 i = n;
3405 sh = priv->ts.streams[i].sh;
3406 }
3407
3408 if(sh)
3409 {
3410 if(ds->id != priv->ts.streams[i].id)
3411 reset_fifos(demuxer, areset, vreset, 0);
3412 ds->id = priv->ts.streams[i].id;
3413 ds->sh = sh;
3414 ds_free_packs(ds);
3415 mp_msg(MSGT_DEMUX, MSGL_V, "\r\ndemux_ts, switched to audio pid %d, id: %d, sh: %p\r\n", i, ds->id, sh);
3416 }
3417
3418 *((int*)arg) = ds->id;
3419 return DEMUXER_CTRL_OK;
3420 }
3421
3422 case DEMUXER_CTRL_IDENTIFY_PROGRAM: //returns in prog->{aid,vid} the new ids that comprise a program
3423 {
3424 int i, j, cnt=0;
3425 int vid_done=0, aid_done=0;
3426 pmt_t *pmt = NULL;
3427 demux_program_t *prog = arg;
3428
3429 if(priv->pmt_cnt < 2)
3430 return DEMUXER_CTRL_NOTIMPL;
3431
3432 if(prog->progid == -1)
3433 {
3434 int cur_pmt_idx = 0;
3435
3436 for(i = 0; i < priv->pmt_cnt; i++)
3437 if(priv->pmt[i].progid == priv->prog)
3438 {
3439 cur_pmt_idx = i;
3440 break;
3441 }
3442
3443 i = (cur_pmt_idx + 1) % priv->pmt_cnt;
3444 while(i != cur_pmt_idx)
3445 {
3446 pmt = &priv->pmt[i];
3447 cnt = is_usable_program(priv, pmt);
3448 if(cnt)
3449 break;
3450 i = (i + 1) % priv->pmt_cnt;
3451 }
3452 }
3453 else
3454 {
3455 for(i = 0; i < priv->pmt_cnt; i++)
3456 if(priv->pmt[i].progid == prog->progid)
3457 {
3458 pmt = &priv->pmt[i]; //required program
3459 cnt = is_usable_program(priv, pmt);
3460 }
3461 }
3462
3463 if(!cnt)
3464 return DEMUXER_CTRL_NOTIMPL;
3465
3466 //finally some food
3467 prog->aid = prog->vid = -2; //no audio and no video by default
3468 for(j = 0; j < pmt->es_cnt; j++)
3469 {
3470 if(priv->ts.pids[pmt->es[j].pid] == NULL || priv->ts.streams[pmt->es[j].pid].sh == NULL)
3471 continue;
3472
3473 if(!vid_done && priv->ts.streams[pmt->es[j].pid].type == TYPE_VIDEO)
3474 {
3475 vid_done = 1;
3476 prog->vid = pmt->es[j].pid;
3477 }
3478 else if(!aid_done && priv->ts.streams[pmt->es[j].pid].type == TYPE_AUDIO)
3479 {
3480 aid_done = 1;
3481 prog->aid = pmt->es[j].pid;
3482 }
3483 }
3484
3485 priv->prog = prog->progid = pmt->progid;
3486 return DEMUXER_CTRL_OK;
3487 }
3488
3489 default:
3490 return DEMUXER_CTRL_NOTIMPL;
3491 }
3492 }
3493
3494
3495 const demuxer_desc_t demuxer_desc_mpeg_ts = {
3496 "MPEG-TS demuxer",
3497 "mpegts",
3498 "TS",
3499 "Nico Sabbi",
3500 "",
3501 DEMUXER_TYPE_MPEG_TS,
3502 0, // unsafe autodetect
3503 ts_check_file_dmx,
3504 demux_ts_fill_buffer,
3505 demux_open_ts,
3506 demux_close_ts,
3507 demux_seek_ts,
3508 demux_ts_control
3509 };
mplayer with SMedia Glamo drivers